A cross-platform .NET library for IMAP, POP3, and SMTP.

MIT License

MailKit

Manage mailboxes, filter/get/delete emails in PHP (supports IMAP/POP3/NNTP)

php-imap

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

Other

curl

mailio is a cross platform C++ library for MIME format and SMTP, POP3 and IMAP protocols. It is based on standard C++ 17 and Boost library.

mailio

30 different honeypots in one package! (dhcp, dns, elastic, ftp, http proxy, https proxy, http, https, imap, ipp, irc, ldap, memcache, mssql, mysql, ntp, oracle, pjl, pop3, postgres, rdp, redis, sip, smb, smtp, snmp, socks5, ssh, telnet, vnc)

GNU Affero General Public License v3.0

honeypots

rust-pop3

Complete email library for AS3 supporting SMTP, POP3 and IMAP4.

AirXMail

libPasCURL is delphi and object pascal wrapper around cURL library. Library for transferring data with URL syntax, supporting HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, LDAP, LDAPS, FILE, IMAP, SMTP, POP3, RTSP and RTMP.