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Mac OS X 10.5 Server – 2GB Cyrus Quota Limit

If you’re running the default Postfix/Cyrus combo on a Mac OS X 10.5.x server AND use mailbox quota management, then be aware that Cyrus can only manage mailbox quotas of up to 2047MB – that’s 1 MB less than the 2GB mark.

If you set a user’s mailbox quota any higher, then you’ll start seeing weird errors all over the place. Most likely, it will also cause the said user to not be able to receive any more mail.

When this is happening, you will notice this error message in your logs:

root : TTY=unknown ; PWD=/ ; USER=_cyrus ; COMMAND=/usr/bin/cyrus/bin/cyrus-quota -r

***UPDATE***
I’ve found out that out of the box, Dovecot quotas management is also limited 2GB. There are hacks around this but is not recommended for people who forget commas in their codes often.

Posted in Apple, English.


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