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Administrators • Re: Random HTTP ERROR 504 Upstream Server Issues

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Apple mail 18 from recent IOS 18 upgrade should be the problem: iOS 18 IMAP requests causing mailbox unavailability.

In addition to upgrading your system you can try to edit nginx to block those imap clients with some regex.
Also, using KILL in mysql to put an end to those queries so that its associated mailbox is freed.

Finally, yes, you could ask your end users to open support cases with Apple so that they no longer program their imap clientes in a such special way.

Statistics: Posted by adrian.gibanel.btactic — Thu Jan 30, 2025 3:53 pm



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