smtp
Apache Commons Net library contains a collection of network utilities and protocol implementations.
Supported protocols include Echo, Finger, FTP, NNTP, NTP, POP3(S), SMTP(S), Telnet, and Whois.
Last Release on Mar 19, 2026
Apache James :: Server :: SMTP :: DKIM
Last Release on Oct 3, 2025
9.Apache James :: Server :: Mailet :: Mock SMTP Server5 usages
org.apache.james » mock-smtp-server Apache
Provide a standalone mock SMTP server that could be configured over HTTP.
Dockerized it can be used for advanced error testing for SMTP clients.
Last Release on Oct 3, 2025
