[MlMt] How to archive mail to save server space, but keep local copies?

Jolin Warren jolinwarren+mailmate at oakandapple.org
Tue Jul 29 07:21:23 EDT 2025


One other option is to run a dovecot IMAP server locally on your Mac and 
add it to MailMate. This gives you an ‘On My Mac’ account that 
MailMate sees as just another server. Two disadvantages:

1. It takes up twice the space on your Mac as dovecot stores the 
messages/attachments and MailMate stores its ‘cached’ versions too.

2. Whilst you can mostly set up dovecot and then forget it, occasionally 
it might have issues and you then need to spend some time getting it 
running again (this generally only happens if there’s a major update 
to dovecot or MacOS).

Luckily Fredrik Jonsson keeps a page regularly updated which gives 
simple instructions for getting dovecot running and noting any issues 
with updates (to either dovecot or MacOS):

https://xdeb.org/post/2014/running-dovecot-as-a-local-only-imap-server-on-os-x/
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