[Dovecot] Multilayer mail handling

Jimmy Thrasibule jimmy.thrasibule at gmail.com
Mon May 26 08:25:12 UTC 2014


I'm wondering what is the correct architecture and configuration to
setup a multilayer mail handling? What I have in mind is something
more like what we can found in Web platform architectures.

1. First layer does first checks: user authentication and SSL
offloading. If all checks are OK request is proxied to layer 2.
2. Second layer, will actually handle the IMAP/POP3 connection proxied
by layer 1, no major checks should be done as already made by layer 1.
3. Finally, layer 3 to do some virus checks on the emails and maybe
some other things I can't think about.

Do you have some pointers on how to set up such a mail stack where
each layer can be on multiple other hosts?

Best regards,

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