reads configuration data from /etc/ssmtp/ssmtp.conf The file contains keyword-argument pairs, one per line. Lines starting with and empty lines are interpreted as comments.

The possible keywords and their meanings are as follows (both are case-insensitive):

Root

The user that gets all mail for userids less than 1000. If blank, address rewriting is disabled.

Mailhub

The host to send mail to, in the form host No | IP_addr No Oo : port Oc . The default port is 25.

RewriteDomain

The domain from which mail seems to come. for user authentication.

Hostname

The full qualified name of the host. If not specified, the host is queried for its hostname.

FromLineOverride

Specifies whether the From header of an email, if any, may override the default domain. The default is

UseTLS

Specifies whether ssmtp uses TLS to talk to the SMTP server. The default is

UseSTARTTLS

Specifies whether ssmtp does a EHLO/STARTTLS before starting SSL negotiation. See RFC 2487.

TLSCert

The file name of an RSA certificate to use for TLS, if required.

AuthUser

The user name to use for SMTP AUTH. The default is blank, in which case SMTP AUTH is not used. sent without

AuthPass

The password to use for SMTP AUTH.

AuthMethod

The authorization method to use. If unset, plain text is used. May also be set to

/etc/ssmtp/ssmtp.conf

Contains configuration data for ssmtp .

Matt Ryan (mryan@debian.org), Hugo Haas (hugo@debian.org), Christoph Lameter (clameter@debian.org) and Dave Collier-Brown (davecb@hobbes.ss.org). Reuben Thomas (rrt@sc3d.org) wrote the man page.