Certificate fingerprints

These are the fingerprints for Fastmail SSL/TLS certificates. They can be useful if you need to confirm that non-browser connections are secure.

app.fastmail.com, imap.fastmail.com, smtp.fastmail.com, etc.

  • SHA-1 fingerprint: A8:2E:0D:E4:D1:21:0A:9A:FD:20:FB:DF:A8:E4:F8:5A:12:D4:FF:98
  • SHA-256 fingerprint: 38:A4:B4:EA:CA:2C:37:C0:47:06:D8:36:E9:47:8E:F2:E9:6C:27:7F:1C:0D:37:34:68:56:A7:87:2F:62:A8:C1

www.fastmailusercontent.com

  • SHA-1 fingerprint: 7E:93:90:77:6A:7B:24:1F:FE:55:05:C8:B3:C4:12:B2:33:22:E3:24
  • SHA-256 fingerprint: 06:0B:30:2C:3E:88:7F:1A:23:6A:01:14:C6:A4:39:FE:07:D1:AC:01:31:62:55:CA:41:87:FF:30:8B:80:F8:8D

mail.messagingengine.com (deprecated)

  • SHA-1 fingerprint: 3B:EB:F8:BA:D0:0B:53:54:A2:DC:27:53:0C:44:25:5D:E8:53:B2:79
  • SHA-256 fingerprint: CA:56:50:90:CF:EB:70:24:40:FB:D7:CE:3A:A6:A3:4B:C5:4E:5F:14:DE:04:65:EA:90:62:F4:8B:96:2E:16:E0
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