Preventing sendmail from been very slow
The first thing that I did after installing sendmail with
aptitude install sendmail
is I put “gate.localhost” (gate is my server name) to /etc/hosts so it looks like this:
127.0.0.1 localhost.localdomain localhost 127.0.1.1 gate.localhost gate # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters
With default /etc/hosts containing only “gate” and “localhost” sendmail hangs up for a while and writes to /var/log/mail.log the following message:
My unqualified host name (gate) unknown; sleeping for retry.
