I'm looking for suggestions and hair brained ideas.
I manage mail for a number of different domains.
I would like to setup a mailserver that archives/journals all traffic that passes through it.
Or to say it another way.
I want to setup a mailserver that
1. accepts message
2. creates a mailbox if one doesnt exist for this user
3. put the message in a certain predefined folder based on subject
4. forward message to recipient.
I'm basically trying to roll my own cloud spam filter.
I have the filtering down. I have backup MX in place.
The last step is figuring a non labor intensive way to archive inbound mail for a few days in case the inhouse server is down they would still have web access to mail.
I'm fluent in Exchange but I don't think the licensing will be friendly to my pocket so opensource solution would be prefered.
I have looked at some archiving solutions but most want LDAP to the main server or some other user verification.
throw your ideas at me.