Source
Message data, retention & security — found from sitemap — Postmark
Checked for Postmark on 1 Nov 2026
- Page
- https://postmarkapp.com/support/article/what-tls-does-postmark-support-and-use
- Checked
- 1 Nov 2026, 09:53 UTC
- How we may use it
- Public page, crawling permitted
Technical details
- type
- page
- http status
- 200
- content hash
- sha256:3216c44b334e23f7dcdb08eb90cb4171c66424524ed43c972a651978d26a5a1e
- permission
- robots_ok
- screenshot
- Screenshot on file (internal exhibit, not published)
Cited by
Facts read from this source
-
Tls requirement Report an error
“Postmark requires a TLSv1.1 or higher connection to send.”
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Tls outbound opportunistic Report an error
“right now, our TLS support for outbound messages we send is opportunistic - we'll use TLS if available, but fall back to unencrypted if it's not. Customer cannot control the TLS version being used.”
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Tls inbound opportunistic Report an error
“Inbound messages also support Opportunistic TLS (related case).”
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Tls version order Report an error
“We'll use, in order of strongest → weakest: TLSv1.2 TLSv1.1 TLSv1 SSLv3”
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Article last updated Report an error
“Last updated March 27th, 2025”
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Copyright Report an error
“© ActiveCampaign, LLC, 2026.”
Scores citing this record
- The Agency Lead Message data, retention & security
- The Data Protection Officer Message data, retention & security
- The Shop Operator Message data, retention & security
- The Platform Engineer Message data, retention & security
- The SaaS Developer Message data, retention & security
- The Skeptic Message data, retention & security