Keeping this around for historical reference... yes, this is old code
for README - see below...
For current debian based systems, better to use apt and grap the ssmtp package there, as it's still supported
- openssl
- inetutils
sSMTP - simple mail agent
sSMTP is an extremely simple MTA to get mail off the system to a mail hub. It contains no suid-binaries or other dangerous things – no mail spool to poke around in, and no daemons running in the background. Mail is simply forwarded to the configured mailhost. Extremely easy configuration.
This is ideal for web servers and embedded to avoid running MTA daemons like sendmail, Exim and Postfix which use up resources on the server.
ssmtp.conf
# gmailuser - gmail account
# gmailpassword - password for the account - this is in the clear
# hostname doesn't need to be a FQDN
root=<gmailuser>@gmail.com
hostname=<hostname>
mailhub=smtp.gmail.com:587
UseSTARTTLS=Yes
AuthUser=<gmailuser>@gmail.com
AuthPass=<gmailpassword>
FromLineOverride=YES
sSMTP doesn’t run as service so there’s no restart required. sSMTP creates a link to /usr/sbin/sendmail which most programs use by default to send mail including PHP.
echo "Test message from Linux server using ssmtp" | sudo ssmtp -vvv [email protected]
The trace there should be evident - it works or it doesn't
Unfortunately - a few things might go wrong, so check the following
- Check gmailuser and gmailpassword again
- Check google is not blocking your new device
- Check Two Factor Auth on Google Account - with two factor auth, you'll need to set an app password
Purpose and value: This is sSMTP, a program that replaces sendmail on workstations that should send their mail via the departmental mailhub from which they pick up their mail (via pop, imap, rsmtp, pop_fetch, NFS... or the like). This program accepts mail and sends it to the mailhub, optionally replacing the domain in the From: line with a different one.
WARNING: the above is all it does. It does not receive mail, expand aliases or manage a queue. That belongs on a mailhub with a system administrator. The man page (ssmtp.8) and the program logic manual (ssmtp_plm) discuss the limitations in more detail.
It uses a minimum of external configuration information, and so can be installed by copying the (right!) binary and an optional four-line config file to a given machine.
Type of systems supported: Berkeley-derived, or ones otherwise using /usr/lib/sendmail as a mail transfer agent. In use on SunOS 4.1.1, NextStep 2.x/3 and Ultrix 4.2, tested briefly on AIX 3.2 and RISCos. Tested by others on DG U/X 5 and SVR4.
You may need to #define USE_OLD_ARPADATE for the Cygwin port of ssmtp (otherwise the day of the month would always be the letter "d").
Dependencies: External: Berkeley sockets and supporting libraries.
Known limitations: This is not a complete sendmail. It is only a program to post mail to a mailhub for people who don't want a complete sendmail. Therefore a lot of flags are not supported. The old header limit of 4K is fixed and the number of recipients is as large as can be held in memory.
Known problems: Pine uses a lot of sophisticated options to talk to sendmail, and uses batched SMTP input which is not supported. The solution is to use your mailhub as smtpserver in pine.conf. If the mailhub is not reachable, sSMTP will fail.
Authors: David Collier-Brown, [email protected], [email protected] or [email protected] Christoph Lameter, [email protected], [email protected], [email protected] Hugo Haas, [email protected], [email protected], [email protected] Matt Ryan, [email protected], [email protected]
TLS support from Tobias Rundstrom [email protected] IPv6 support from Jun-ya Kato [email protected] MD5 authentication support from TAKIZAWA Takashi [email protected]
Current Maintainer: Anibal Monsalve Salazar, [email protected]
Patchlevel: See ssmtp.c
Copying conditions: GNU GPL