olemus
üks vanimaid meiliagente, toetab mitmeid edastusmeetodeid, toetab protokolle SMTP, POP, IMAP; on versioonid eri opsüsteemidele ja riistvaraplatvormidele priivarana või omandtarkvarana, populaarseim on UNIXipõhine SMTP teostus
= one of the oldest email agents, supports several delivery methods, supports SMTP, POP, IMAP protocols; there are versions for different operating systems and hardware platforms as freeware or proprietary software, the most popular being the UNIX-based SMTP implementation

ülevaateid
https://en.wikipedia.org/wiki/Sendmail

http://aplawrence.com/Unixart/sendmail.html

http://www.csl.mtu.edu/cs4451/www/notes/ch10_sendmail.pdf

https://docs.freebsd.org/44doc/smm/09.sendmail/paper.pdf

http://www.sendmail.org/~gshapiro/Sendmail-8.10.Paper.pdf

http://www.deer-run.com/~hal/dns-sendmail/Demystifying-Sendmail.pdf

turvalisus
https://www.cvedetails.com/vulnerability-list/vendor_id-31/Sendmail.html

http://www.softpanorama.org/Mail/Sendmail/sendmail_security.shtml

https://deer-run.com/users/hal/sysadmin/sendmail.html