smtp

Fast email client with full Gmail, Hotmail and other services synchronization. Best replacement for MS Outlook or Thunderbird. Free version for Home users.

Cross-platform SMTP / IMAP / POP3 connectivity tester with IT-actionable diagnostics.

Standalone SMTP server designed for viewing received messages

POP/IMAP/SMTP/Caldav/Carddav/LDAP Exchange and Office 365 Gateway