Postfix and Servers with invalid Helo
I like to keep higher than “normal” security on our email servers. One such setting in Postfix is: smtpd_helo_required = yes Along with this setting enabled, you need to specify…
I like to keep higher than “normal” security on our email servers. One such setting in Postfix is: smtpd_helo_required = yes Along with this setting enabled, you need to specify…