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: 8D:55:CB:27:AA:1F:65:27:1F:D6:F7:D2:05:31:A9:AF:55:8B:2F:84
  • SHA-256 fingerprint: FE:CF:B4:1C:41:E7:3D:FF:69:A4:00:0D:2C:13:B7:31:A3:71:90:3B:BE:88:BB:26:E8:19:26:66:2C:29:17:13

mail.messagingengine.com

  • SHA-1 fingerprint: 6D:6E:C5:04:28:7D:10:3D:AD:FC:92:1B:84:64:7F:86:D3:05:87:27
  • SHA-256 fingerprint: 3D:1D:6B:D6:2A:9B:2A:2D:97:FF:50:80:66:9E:0D:98:88:CB:A9:91:07:0F:12:A5:17:85:2D:1F:46:B7:E4:7B

www.fastmailusercontent.com

  • SHA-1 fingerprint: 5D:40:42:92:98:D5:A2:CD:0E:B3:DF:72:D9:2D:E0:14:0B:70:1C:9B
  • SHA-256 fingerprint: DA:DE:19:8F:1E:2B:2F:9C:5F:D3:38:41:34:89:3B:F3:64:02:91:F7:CD:3C:5F:B7:96:AA:67:EA:31:A6:3F:93
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