Missing MTA info in Mailscanner Milter documentation

[pos42]

I have a setup with 2 sendmail and a mailscanner in between. I have seen I need two separate dkim instances to not break signatures if mailscanner add anything. I.e a dkim verifier in incoming and a dkim signer on outgoing. Seem it is not possible in std mailscanner setup…

I have seen an easy path on this which is to add a smarthost record on incoming sendmail.mc (so mailscanner will use that during sending) and set up a brand new sendmail daemon instance as smarthost with its own sendmail-out.mc that will do the dkim signing on outgoing emails in the second dkim instance.

Now…

I have seen the milter implementation guide at https://usermanual.wiki/Document/MailScanner20Milter20Guide.1842687663.pdf and seen it only mention postfix. It actually says postfix is a requirement for Mailscanner milter integration.

I see postfix is the only option when using Mailscanner config “MSMail Delivery Method = QMQP”. But if using Mailscanner config setting “MSMail Delivery Method = SMTP”, why should it not work with sendmail? Of course I can create a test system and test it. But it would be really nice if the documentation mentioned anything about it.

Does mailscanner milter work with sendmail as well if using SMTP instead of QMQP? If not, it would be nice to have that too in the docs. And a feature request for it :)

Tnx
Peo

[github-actions]

Thank you for submitting your first issue to MailScanner! We will respond to you soon!