Source

Deliverability & sender reputation — found from sitemap — Mailtrap Email API/SMTP

Checked for Mailtrap Email API/SMTP on 1 Nov 2026

Technical details

type: page
http status: 200
content hash: sha256:79420be44318ab0439424988a826ff81f72d2100292aa1e15ab53a5c6cd0038a
permission: robots_ok
screenshot: Screenshot on file (internal exhibit, not published)

Cited by

Fbl integration Report an error

“Mailtrap is integrated with the majority of popular Feedback Loops (FBLs) to gather information about spam complaints.”
Gmail feedback id Report an error

“Mailtrap adds Feedback-ID to all emails sent to Gmail. If you specify Email Categories, we add it to the header as a part of the category.”
Gmail spam rate review Report an error

“Our Deliverability Team can review aggregated data for Spam Rates for Gmail recipients daily if you provide us with view rights for Google Postmaster. This service is available for our paid customers.”
Complaint alerts Report an error

“Mailtrap may get alerts from these FBLs if your recipients submit spam complaints. You'll see them in your Stats and may receive them via Webhooks.”
Cfbl header Report an error

“We also support the CFBL-Address header as per RFC 9477. However, it’s still experimental, and not all mailbox providers support it.”
Fbl providers Report an error

“The list of FBLs Mailtrap is integrated with: Microsoft Outlook Yahoo! Mail Bluetie Comcast Fastmail gandi.net Liberty Global (Chello, UPC, and UnityMedia) Locaweb Mail.ru OpenSRS/Hostedmail (Tucows) Rackspace Seznam SFR SilverSky Swisscom Synacor Telecom Italia Telenet Telenor Telstra Terra UOL Virgilio Virgin Media Yandex Ziggo”