On my current Debian setup, I have a file /var/log/mail.log which Dovecot, Postfix, and Spamassassin's spamd all output messages to.  I know that the logger command can output to syslog, but is there some command that easily lets me output to the mail log from a bash script, or do I have to manually open it and append to it?
How to log output to maillog?
bash;logs;email;logger