Easy certificate import
Import your S/MIME certificate from a .p12 file, and BlueMail handles the rest.
Security · S/MIME
S/MIME: sign and
S/MIME: sign and
encrypt with confidence.
Over 300 billion emails are sent every day, many from imposters. S/MIME in BlueMail verifies who sent the message and keeps the content private. It's one of the encryption layers behind Blue Guard.
What is S/MIME?
S/MIME (Secure/Multipurpose Internet Mail Extensions) is a widely supported standard that does two important things at once: it creates a digital signature so recipients can verify a message is genuinely from you, and it encrypts the message content so only your recipient can read it.
In BlueMail
Per-message control
Sign and encrypt with a single tap from the composer or leave it off when you don't need it.
Trust indicators
Incoming signed messages show clear verification badges — spoofs stand out instantly.
Works with everyone
S/MIME is supported by every major mail client: interoperable with Outlook, Apple Mail, Thunderbird and more.
S/MIME is available on BlueMail Enterprise, our plan for corporate.