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.

www.fastmail.com, imap.fastmail.com, smtp.fastmail.com, etc

  • SHA-1 fingerprint: BA:98:66:81:47:AB:11:DA:60:29:45:87:FD:02:8B:1B:98:0A:9F:20
  • SHA-256 fingerprint: AF:01:8E:7F:FF:36:61:06:C6:F9:D4:38:D1:4E:08:98:78:C8:27:C5:E5:C0:A3:97:49:37:F2:76:90:B1:27:59

mail.messagingengine.com

  • SHA-1 fingerprint: E6:96:5D:A4:C6:9A:F1:FE:D7:DF:EB:FC:8A:80:6C:DB:E1:BC:EA:88
  • SHA-256 fingerprint: 4A:4E:6E:C2:17:CC:B1:BC:0C:92:FD:6F:8B:C5:3F:51:1E:DA:77:C4:85:38:C8:16:BA:A6:65:F9:BF:07:F4:DF

www.fastmailusercontent.com

  • SHA-1 fingerprint: EE:6F:2A:45:34:DA:29:43:5B:E8:78:74:08:3E:70:2C:8B:76:90:EA
  • SHA-256 fingerprint: 35:7B:E1:D0:50:50:51:B6:72:5B:86:B1:3D:0E:F9:78:A2:51:86:97:8E:15:72:FF:9E:07:C7:34:BA:F4:A4:5C
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