Top 5 smime open source projects

Mailkit
A cross-platform .NET library for IMAP, POP3, and SMTP.
python-smime
S/MIME encoder in pure python
openssl
Fork of OpenSSL that includes prototype quantum-resistant algorithms and ciphersuites based on liboqs
pyas2-lib
AS2 Library for building and parsing Messages and MDNs
wp-pgp-encrypted-emails
🔐 📧 Encrypts WordPress emails using OpenPGP or S/MIME with a familiar API.
1-5 of 5 smime projects