I am currently running MailScanner on a server, although considering to replace it by MailCleaner.
I would like to be able to resend e-mail that passes through the anti-spam server. This seems to me a very handy feature, that is only implement by Barracuda Anti-Spam firewalls and I was unable to find such functionality in open-source software as "this is not how e-mail works".
Although in cases of downtime and especially misconfiguration of destination mailservers or false positions, it would be nice to have a feature to re-send e-mail.
I am considering implementing MailArchiva soon as well, but I doubt mail archiving software has an ability to re-send old e-mails.
How can I set up my anti-spam server so I can resend e-mail that is somehow lost after it arrived on the anti-spam server? I know it means the anti-spam server should store all e-mail for a month, which is no problem for me.