Sender Dependent
Introduction to Outgoing IPs By default, when your mail server sends out email the SMTP connection will come from the system’s default IP address, typically that assigned to eth0 . Even if ...
Postfix transport_map
transport_maps = hash:/etc/postfix/transport create /etc/postfix/transport in the format of domain.com smtp:smtp.mailchannels.netdomain2.com smtp:smtp.mailchannels.net add to main.cf: smtpd_sasl_authenticated_header = yes service postfix restart
Installing PMTA
PMTA Powermta Introduction PowerMTA is a Commercial Mail Transfer Agent (MTA) used by many email service providers (ESPs), Mass Mailing Companies And Paid SMTP Providers Like Sendgrid.com, Mandrill.com, SMTP.com, Sendloop.com, and many others. cat > /etc/yum.repos.d/webmin.repo ...
