DragonFly users List (threaded) for 2006-10
Re: mailserver using dfbsd
:Due do the dynamic nature of grey-listing, I don't think this "hourly sync"
:is a good idea.
:There are several grey-listing implementations that can use a networked
:RDBMS like MySQL or PostgreSQL. Run an *SQL server on either host (or
:on a dedicated third one) and let both mailservers use/maintain the same
:database over the network.
If you don't like pulling a greylist once an hour or once a minute or
however, then just push live updates with a UDP broadcast and do a lazy
synchronization to catch anything that was missed.
If you want things to run efficiently, each SMTP processing host needs
to operate independantly. Otherwise any failure can bottleneck the
entire system. Having a single data server can and will bottleneck
the system as well as create a single point of failure. It's a really
bad idea. Keep it simple and design the system robustly.