# IONOS E-Mail & Office — Business Email & Office Suites

IONOS E-Mail & Office by IONOS SE holds a panel rating of 3/5 from 6 AI judges (category median 3/5), as of 2026-11-06. Provenance: EU-Made; sovereignty: not determined.

- Vendor: IONOS SE (https://www.ionos.de/office-loesungen/eigene-email-adresse)
- Category: [Business Email & Office Suites](https://whats-best.ai/software/business-email.md)
- Provenance (editorial classification): EU-Made
- Canonical page: https://whats-best.ai/software/business-email/ionos-email-office
- Alternatives: https://whats-best.ai/software/business-email/ionos-email-office/alternatives ([markdown](https://whats-best.ai/software/business-email/ionos-email-office/alternatives.md))
- Data as of: 2026-11-06 · evaluated 2026-11-06 · oldest source captured 2026-11-05

**AI-generated.** Every score, rationale and verdict here is written by a panel of AI judges from public evidence — an analysis, not a hands-on test. Every fact quotes the vendor page it was read from. No score can be bought. How scores are made: https://whats-best.ai/methodology

## At a glance

- Vendor: IONOS SE
- Headquarters: Not stated on the vendor’s pages as of 5 Nov 2026
- Data hosting: Default not stated; pages mention Germany [S6]
- Free plan: Not stated on the vendor’s pages as of 5 Nov 2026

## The panel's verdict

The bench reads IONOS E-Mail & Office as a German mail-and-office package, strong on hosting, archiving and stated prices, thin on administration and exit. Sovereignty is its strongest criterion, scoring 6 to 8, the table's top score: IONOS SE, registered under HRB 24498 in Montabaur, hosts in georedundant, ISO 27001-certified German data centres, keeps Nextcloud Workspace data exclusively in Germany, publishes a data processing agreement and states BSI C5. Security and compliance holds a flat 6 on the archiving add-on. Calendar and office and pricing transparency score 6 to 7, built on shared calendars, free Outlook 2024 licences, Euro-Office co-editing and permanent VAT-inclusive prices — Mail Basic 1+ at 5 € per month, Mail Business at 6 €. The weakest bands are administration and identity and migration and portability, both 3 to 4: the pages document a vendor-run Control Center and 24/7 support, while the judges found no public information on single sign-on, directory synchronisation or standard-format export. The scores split on mail and deliverability, 4 to 6, with no public information found on DKIM, DMARC or distribution lists.

**Speaks for it:**
- GoBD-compliant, revision-safe archiving of all inbound and outbound mail including attachments, with logged access and per-mailbox rights activated in the Control Center.
- Mail in the provider's own georedundant, ISO 27001-certified data centres in Germany, Nextcloud Workspace data exclusively in Germany, and a published data processing agreement.
- Permanent, monthly-cancellable prices with VAT included — Mail Basic 1+ at 5 € per month, Mail Business at 6 € per month — with regular prices shown after introductory discounts.
- Free migration in: a migration tool to European servers, forwarding from the old address, and.de domain transfer-in.
- Hosted Exchange tier with free Outlook 2024 licences, Outlook Web App and 100 GB public folders.

**Held against it:**
- No public information on DKIM, DMARC, aliases or distribution lists, leaving DNS and deliverability work only partly covered on the public pages.
- No public information on single sign-on, customer directory synchronisation, SCIM provisioning, admin roles, mobile device policies with remote wipe or exportable audit logs.
- Only the inbound move is documented, with no public information on export of mail in standard formats, calendar migration or data handling when the contract ends.
- No public price for the GoBD archiving add-on, Hosted Exchange or mailbox expansion, and no monthly-versus-annual billing comparison.
- No subprocessor list with locations for the mail service on the captured pages, while the privacy notice permits transfers outside the EU under safeguards and names hashed marketing transfers to Meta, LinkedIn, TikTok, Reddit and Google Customer Match.

**Best for:**
- You run a German small firm or practice that needs GoBD-compliant, revision-safe mail archiving alongside two-factor sign-in and stated, monthly-cancellable prices.
- You want mail and workspace data hosted in Germany by IONOS SE of Montabaur, registered under HRB 24498 and listed in Frankfurt, with a published data processing agreement and ISO 27001 and BSI C5 stated.
- Your office lives in Outlook and wants a hosted Exchange option with free Outlook 2024 licences alongside shared calendars, contacts and tasks.
- You are moving in from another provider and value a free migration tool, forwarding from the old address and monthly cancellation.

**Avoid if:**
- You administer hundreds of mailboxes with your own directory, single sign-on and provisioning tooling — the documented model is IONOS-managed servers plus a Control Center, and administration and identity scores 3 to 4.
- You need a documented exit before signing — the inbound move is documented, the judges found no public information on export in standard formats or on data handling when the contract ends, and migration and portability scores 3 to 4.
- Your outbound deliverability depends on DKIM and DMARC — the pages document SPF, the judges found no public information on DKIM or DMARC, and the scores spread from 4 to 6.
- You must exclude any transfer of customer data outside the EU — the privacy notice permits transfers outside the EU under safeguards and names hashed marketing transfers to Meta, LinkedIn, TikTok, Reddit and Google Customer Match.

## Scores by judge and criterion

Scores out of 5, each judge scoring independently against the published rubric (v1). "n/r" = not rated: the vendor publishes no price, or the judge found no public information on that criterion.

| Criterion | The Small Firm Owner | The IT Administrator | The Public Sector IT Lead | The IT Service Provider | The Data Protection Officer | The Skeptic |
| --- | --- | --- | --- | --- | --- | --- |
| Mail, domains & deliverability | 3/5 | 3/5 | 3/5 | 2/5 | 2/5 | 3/5 |
| Calendar, contacts & office apps | 3.5/5 | 3.5/5 | 3.5/5 | 3/5 | 3/5 | 3/5 |
| Security, encryption & compliance archiving | 3/5 | 3/5 | 3/5 | 3/5 | 3/5 | 3/5 |
| Administration, identity & partner management | 2/5 | 2/5 | 2/5 | 2/5 | 2/5 | 1.5/5 |
| Migration, open standards & exit | 2/5 | 2/5 | 2/5 | 2/5 | 2/5 | 1.5/5 |
| European sovereignty | 3.5/5 | 4/5 | 3.5/5 | 3.5/5 | 3.5/5 | 3/5 |
| Pricing transparency | 3.5/5 | 3/5 | 3/5 | 3/5 | 3/5 | 3/5 |
| **Weighted verdict** | **3/5** | **3/5** | **3/5** | **2.5/5** | **2.5/5** | **2.5/5** |

### The judges

- **The Small Firm Owner** (v1.0): Runs a tax and accounting firm of twelve in Lower Saxony. Every member of staff lives in Outlook, the shared "kanzlei@" mailbox is the busiest address in the office, and the meeting room is booked by shouting across the corridor. Wants mail on the firm's own domain that arrives, a shared calendar and address book on every phone, a move from the old provider that does not lose a single client thread, and a per-user price that is still the price in the second year.
- **The IT Administrator** (v1.0): IT administrator at a machine builder in Baden-Württemberg with three hundred mailboxes, an on-premises Exchange that reaches end of support, and Active Directory as the source of every account. Wants Outlook to keep working without a plug-in nobody maintains, shared mailboxes and room booking, single sign-on and directory sync, mobile devices that can be wiped, an API for provisioning, and a migration that moves calendars and permissions, not only mail.
- **The Public Sector IT Lead** (v1.0): Head of IT at a district administration in Bavaria with eleven hundred staff, told by the council to leave Microsoft within three years. Has read what Schleswig-Holstein did and what it cost. Needs mail, calendars and documents that a whole administration can work in, open formats and open source where possible, BSI C5 or ISO 27001 on paper, a provider whose owners answer to European law only, and an exit plan before the contract is signed.
- **The IT Service Provider** (v1.0): Runs a six-person IT service company in Austria that looks after mail for forty client firms, from a two-person architect's office to a hotel group. Spends Mondays on mails that landed in spam and phones that stopped syncing. Wants one partner console for every client, DKIM and DMARC set up without a ticket, migrations it can run itself, support that answers within the hour, and margins it can calculate before it quotes.
- **The Data Protection Officer** (v1.0): Data protection officer for a group of nine medical practices in North Rhine-Westphalia, where a referral letter sent by mail is patient data under professional secrecy. Reads the subprocessor list and the transparency report before the feature page, asks who at the provider can open a mailbox and under which law, and wants encryption the practices can actually use with outside doctors, archiving that satisfies the tax office, and a data processing agreement that names every server.
- **The Skeptic** (v1.0): Has seen "hosted in Germany" from a provider whose spam filter and support desk sit in the United States, "Exchange-compatible" that meant IMAP with a calendar plug-in, and a first-year price of one euro that became seven. Asks which protocols Outlook really uses, whether the archive would survive a tax audit, what the certification actually covers — and how ten years of mail, calendars and contacts would leave.

## European sovereignty — proven facts

Built only from facts on the vendor's own pages; a dimension we could not prove is left open, never scored as zero. Headline: not determined.

| Dimension | Finding | Points | Source |
|---|---|---|---|
| Legal entity | Not determined | — | — |
| Hosting location | Not determined | — | — |
| Hosting options | Not determined | — | — |
| Open source | Not determined | — | — |
| Data processing agreement | Not determined | — | — |
| Transfer impact assessment | Not determined | — | — |

## Key facts

Each fact is the vendor's own statement, cited to the source page it was read from ([S*n*] → Sources).

**Compliance**
- Automated decision making: no [S10]
- DPA available: Auftragsverarbeitungsvereinbarung · yes [S10]
- DSGVO: yes [S6]
- GDPR: yes [S1]
- GDPR: yes [S12]
- GDPR: yes [S13]
- GDPR ISO: yes · yes [S4]
- GDPR ISO: yes · yes [S14]
- GDPR overview: IONOS Help Center provides information on GDPR and the data processing agreement (AVV) [S11]
- Hosting germany: yes · yes [S1]
- ISO 27001 BSI C5: yes · yes [S14]
- ISO 27001: yes [S3]
- ISO 27001 BSI C5: yes · yes [S4]
- Marketing ml profiling: nutzungsverhalten auf IONOS- und Verbundunternehmen-Webseiten · yes [S10]

**Data**
- Categories processed: identity, contact, financial, transaction, technical, profile, usage, marketing/communication data [S10]
- Rights available: access · rectification · erasure · restriction · portability · objection · withdrawal of consent · complaint to supervisory authority [S10]

**Hosting**
- Data residency: Germany · yes · ISO 27001 [S6]
- Datacenters: Tier IV · yes [S1]
- Datacenters: IV · 100 [S12]
- Datacenters: IV · yes [S13]
- Datacenters germany: deutsche Rechenzentren [S3]
- Georedundant: yes · 2 [S3]
- German datacenters: Germany [S5]
- Googleworkspace residency: international · no [S15]
- International transfers: yes · yes [S10]
- Microsoft365 residency: EU [S15]
- Nextcloud residency: yes · yes [S1]
- Nextcloud residency: Germany only [S15]
- Residency: yes · DE [S4]

**Integrations**
- Mail clients: any IMAP-supporting client · yes [S6]

**Legal**
- Address: 56410 · Montabaur · Elgendorfer Str. 57 · Deutschland [S9]
- Austria presence: Gumpendorfer Straße 142/PF 266, 1060 Wien · yes [S9]
- Board members: Hüseyin Dogan, Arthur Mai, Dr. Andreas Nauerz, Dr. Markus Noga, Dr. Jens-Christian Reich, Patrik Heider, Achim Weiß [S9]
- Commercial register: Amtsgericht Montabaur · HRB 24498 [S9]
- Company: 2026 · IONOS SE [S13]
- Content responsible: Jan Behrens · Elgendorfer Str. 57, 56410 Montabaur [S9]
- Controller identity: datenschutz@ionos.de · Elgendorfer Str. 57, 56410 Montabaur, Deutschland · IONOS SE [S10]
- Copyright: IONOS SE [S14]
- Dispute resolution: no [S9]
- Document date: 2025-09-15 [S10]
- Dsa authority contact point: yes · Deutsch · Englisch [S9]
- Dsa illegal content reporting: yes [S9]
- Entity: IONOS SE [S1]
- Entity: IONOS SE [S11]
- Entity: IONOS SE [S7]
- Entity: IONOS SE [S15]
- Entity name: IONOS SE [S9]
- Listed: Frankfurt stock exchange [S1]
- Nis2 information request: yes [S9]
- Publicly listed: Frankfurt Stock Exchange [S13]
- Regulation 2021 784 contact point: yes · Deutsch · Englisch [S9]
- Technical realisation: IONOS SE Website & eCommerce Platforms · Hinterm Hauptbahnhof 3-5, 76137 Karlsruhe [S9]
- VAT id: DE815563912 [S9]
- Youth protection officer: Frau A. Merkl [S9]

**Pricing**
- 1user price: 1 · EUR · 5 · 44 · 1 · 9 [S4]
- 1user price: EUR · 5 · 1 Monat · 44 · 9 [S14]
- 25user price: EUR · 25 · 1 Monat · 87 · 190 [S14]
- 25users price: 25 · EUR · 25 · 87 · 1 · 190 [S4]
- 5user price: EUR · 10 · 3 Monate · 75 · 40 [S14]
- 5users price: 5 · EUR · 10 · 75 · 3 · 40 [S4]
- Com domain price: 0.08 · monthly cancellable [S13]
- Com promo: 12 · 96 · 2 · 0.08 [S12]
- De domain: EUR · 0.08 · monthly · yes [S12]
- De promo: 12 · 94 · 1.3 · 0.08 [S12]
- Free trial: 1 [S12]
- Info promo: 12 · 95 · 3.5 · 0.17 [S12]
- Limited time: yes · yes [S1]
- Mail basic 1plus: Mail Basic 1+ · monthly cancellable · 12 · 5 [S1]
- Mail basic 1plus: 12 · 5 · yes [S2]
- Mail business: Mail Business · monthly cancellable · 50 · 6 [S1]
- Mail business: 50 · 6 · yes [S2]
- Mail business included: 1 · yes · 50 · yes [S2]
- Mail business users: one 50 GB mailbox per user, unlimited users [S1]
- Monthly cancellable: yes [S14]
- VAT: yes · yes · yes [S2]
- VAT: yes [S4]
- VAT: yes · yes · yes [S12]
- VAT included: yes [S1]
- VAT included: yes · teils abhängig von Mindestvertragslaufzeiten [S3]
- VAT included: yes [S5]
- VAT included: yes · yes · yes [S13]
- VAT included: yes · yes · yes [S6]
- VAT included: teils Mindestvertragslaufzeiten · yes · yes [S14]
- VAT note: yes · yes · yes [S15]

**Product**
- 2FA: yes [S4]
- Access rights control: yes · yes [S5]
- Active directory: yes [S3]
- Ad free: yes · yes · yes [S1]
- Ad free: yes [S2]
- Ad free: yes [S6]
- Adfree comparison: yes · no [S2]
- AI assistant: summarize · translate · rephrase · reply · Webmail KI-Assistent [S1]
- Antivirus spam: yes · yes [S3]
- Archive storage included: yes · 5 · yes [S5]
- Attachment archiving: yes · yes [S5]
- Audit logging: yes · yes [S5]
- Auto updates: yes [S14]
- Bgp routing: yes [S3]
- Browser based: yes · yes [S14]
- Calendar integration: yes [S14]
- Calendar tasks addressbook: yes · yes · yes [S3]
- Chat: yes [S14]
- Control center activation: IONOS Control Center [S5]
- Current exchange version: yes [S3]
- Custom domain: yes [S2]
- Customer base: 30 · 7 [S13]
- Device access: Desktop · Smartphone · Tablet · Apps · Browser [S3]
- Device flexibility: any common email program or webmail [S1]
- Domain comparison: no · yes [S2]
- Domain connect: yes · >110 [S12]
- Domain connect: Domain Connect included for easy third-party DNS setup [S13]
- Domain for website: yes [S2]
- Domain included: yes [S6]
- Domain lock: yes [S13]
- Domain login: yes [S4]
- Domain login: yes [S14]
- Einvoicing formats: ZUGFeRD · XRechnung · yes [S1]
- Encryption: yes [S14]
- Enterprise managed: yes [S14]
- Enterprise usage billing: yes [S14]
- Euro office: Euro-Office integriert, läuft direkt im Browser [S4]
- Exchange supported: yes [S7]
- Free domain: yes [S3]
- Free trial month: 1 [S13]
- Google workspace: yes [S1]
- Googleworkspace storage: 30 · 2048 [S15]
- Hidrive backups: German data centers · yes [S15]
- Hidrive sharing: HiDrive cloud storage with share links, access from smartphone, tablet, laptop [S15]
- Imap: yes · yes · yes [S2]
- Invite by link: yes [S14]
- Ki assistant: datenschutzkonformer KI-Assistent: Texte, Bilder, Antworten [S4]
- Ki assistant: Souveräner KI-Assistent (datenschutzkonforme KI: Texte verfassen, Bilder erstellen, Antworten finden) [S14]
- Mail basic 1 features: yes · 1 · 24/7 · yes · yes · yes · yes · yes · yes [S2]
- Mail basic features: 1 expandable mailbox · spam filter · Webmail AI (optional) · e-invoice receive & read [S1]
- Mail basic scope: Mail Basic · E-Mails · Termine · Kontakte · Aufgaben [S7]
- Mail business features: premium antivirus and spam filter · e-invoice receive & read · Webmail AI (optional) · teamwork tools [S1]
- Mail business scope: Mail Business · shared Kontakte/Termine/Aufgaben · MobileSync [S7]
- Mailbox expandable: yes [S6]
- Mailbox selection: yes · yes [S5]
- Mailbox size: 50 [S4]
- Mailbox size: 50 · 1 [S3]
- Mailbox size: 50 [S14]
- Mailboxes expandable: yes [S2]
- Managed: yes [S4]
- Microsoft365: yes · yes [S1]
- Microsoft365 storage: 1 · 100 [S15]
- Microsoft preferred architecture: Microsoft Preferred Architecture [S3]
- Migration forwarding: yes [S2]
- Migration service: yes [S1]
- Migration service: yes · email migration tool to IONOS European servers [S6]
- Nextcloud storage: 1 [S15]
- Nextcloud workspace: yes [S1]
- One click installation: yes [S13]
- Online shop: own online shop for products, vouchers, services [S15]
- Option exchange: yes · yes [S2]
- Option office365: yes · yes [S2]
- Outlook2024 licenses free: yes [S3]
- Outlook included: yes · 2024 [S3]
- Per user billing: yes [S4]
- Personal advisor: yes [S12]
- Phishing validation service: yes [S7]
- Platform: Nextcloud Workspace [S14]
- Public folders: yes · 100 [S3]
- Recovery window days: E-Mail Recovery Service · 7 [S7]
- Scalable: yes [S3]
- Screen share: yes [S14]
- Security features: yes · yes [S4]
- Server management: yes [S3]
- Spam virus: yes · yes · yes [S2]
- Spam virus protection: yes · optional [S6]
- Spf available: yes [S7]
- Ssl wildcard: yes · 1 [S12]
- Ssl wildcard: yes · yes [S13]
- Storage limits: 50 · 70 [S6]
- Subdomains: yes · 10000 [S13]
- Suites calendar contacts: Microsoft 365 · Google Workspace · Nextcloud Workspace [S15]
- Suites chat video: Microsoft 365 · Google Workspace · Nextcloud Workspace [S15]
- Suites domain: optional add-on · Microsoft 365 · Google Workspace · Nextcloud Workspace [S15]
- Suites mail clients: Outlook · Gmail · IONOS E-Mail [S15]
- Suites online office: Microsoft 365 · Google Workspace · Nextcloud Workspace [S15]
- Sync features: yes [S3]

**Subprocessors**
- Marketing audience services: Meta Custom Audiences · LinkedIn Matched Audiences · TikTok Custom Audiences · Reddit Custom Audiences · Google Customer Match · SHA 256 [S10]

**Support**
- 24 7: Telefon · Chat · E-Mail · 24/7 [S14]
- 24 7 channels: phone · chat · email · yes [S15]
- Channels: phone · chat · email · 24/7 [S2]
- Channels: telefon · chat · e-mail · 24/7 · 0721 / 170 5522 [S4]
- Channels 24 7: phone · chat · email · yes [S12]
- Hours: 24/7 · phone · chat · email [S13]
- Large teams: yes [S1]
- Multi employee consulting: yes [S3]
- Personal advisor: yes [S1]
- Personal advisor: yes [S2]
- Personal advisor: yes [S4]
- Personal advisor: after order · yes [S5]
- Personal advisor: yes [S13]
- Personal advisor: yes [S15]
- Personal advisor: yes [S14]

12 more facts on the canonical page: https://whats-best.ai/software/business-email/ionos-email-office

## Questions

### Is IONOS E-Mail & Office European?

Yes. whats-best.ai classifies IONOS E-Mail & Office as EU-Made.

### Where does IONOS E-Mail & Office store data?

The default storage location for customer data is not stated on the vendor’s pages as of 5 Nov 2026. The vendor’s pages mention Germany as hosting location, per [the vendor’s page captured 5 Nov 2026](https://whats-best.ai/evidence/18295).

### Does IONOS E-Mail & Office have a free plan?

Not stated on the vendor’s pages as of 5 Nov 2026.

### What are the best alternatives to IONOS E-Mail & Office?

As of 6 Nov 2026, the panel rates [grommunio (3.5/5)](https://whats-best.ai/software/business-email/grommunio), [Infomaniak kSuite (3.5/5)](https://whats-best.ai/software/business-email/infomaniak-ksuite) and [Nextcloud Hub (Groupware & Office) (3.5/5)](https://whats-best.ai/software/business-email/nextcloud-hub) highest among the other 14 Business Email & Office Suites products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is [grommunio](https://whats-best.ai/software/business-email/grommunio) (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). The full list, with European products first: [IONOS E-Mail & Office alternatives](https://whats-best.ai/software/business-email/ionos-email-office/alternatives).

## What this page leaves out

- 46 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 19 pricing facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 10 data facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 7 support facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 5 compliance facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 4 hosting facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 3 subprocessors facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 2 legal facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 1 sovereignty dimension could not be confirmed on the vendor’s own pages and is shown as unknown.

## Sources

- [S1] Vendor homepage (business email, with pricing): https://www.ionos.de/office-loesungen/eigene-email-adresse (checked 2026-11-05)
- [S2] Features page (email hosting): https://www.ionos.de/office-loesungen/email-hosting (checked 2026-11-05)
- [S3] Features page (Hosted Exchange): https://www.ionos.de/office-loesungen/microsoft-exchange (checked 2026-11-05)
- [S4] Features page (Nextcloud workspace): https://www.ionos.de/office-loesungen/nextcloud-workspace (checked 2026-11-05)
- [S5] Features page (email archiving): https://www.ionos.de/office-loesungen/email-archivierung (checked 2026-11-05)
- [S6] Features page (migration): https://www.ionos.de/office-loesungen/email-umzug (checked 2026-11-05)
- [S7] Documentation (help centre): https://www.ionos.de/hilfe/e-mail/ (checked 2026-11-05)
- [S8] Security / trust page: https://www.ionos.de/it-security (checked 2026-11-05)
- [S9] Legal notice: https://www.ionos.de/impressum (checked 2026-11-05)
- [S10] Privacy policy: https://www.ionos.de/datenschutzerklaerung (checked 2026-11-05)
- [S11] Documentation (data protection and AVV): https://www.ionos.de/hilfe/datenschutz/ (checked 2026-11-05)
- [S12] Mail, domains & deliverability — found from sitemap: https://www.ionos.de/domains/de-domain (checked 2026-11-05)
- [S13] Mail, domains & deliverability — found from sitemap: https://www.ionos.de/domains/com-domain (checked 2026-11-05)
- [S14] Calendar, contacts & office apps — found from sitemap: https://www.ionos.de/office-loesungen/video-chat (checked 2026-11-05)
- [S15] Calendar, contacts & office apps — found from sitemap: https://www.ionos.de/office-loesungen/cloud-zusammenarbeit (checked 2026-11-05)

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Cite as: whats-best.ai, "IONOS E-Mail & Office — Business Email & Office Suites", AI panel analysis, as of 2026-11-06. https://whats-best.ai/software/business-email/ionos-email-office

Corrections: https://whats-best.ai/correct/1547?target=page