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Interestingly, right now with Safari on MacOS Sonoma I get continuois 502 Bad Gateway errors, but if I open the forums in Firefox I can log in and send this reply no problem.

I also opened a Support Case last week. Support confirmed the behavior and assigned the ticket with a high priority.

Yes, and quite frequently of late.

Zimbra has always been able to block files with certain extensions, like *.scr, *.ocx etc. but now the new attribute 'zimbraFileUploadBlockedFileTypes' can also be used to block by File Type -- regardless of the extension. This is a good thing, but I don't seem to be able to find any documentation a...

zmcontrol wrote: ↑Thu Dec 28, 2023 7:56 pm

ghen wrote: ↑Thu Dec 28, 2023 5:31 pm You can avoid the extra logging by setting "smtpd_discard_ehlo_keywords = silent_discard chunking" instead.

ghen,

Thanks for the heads up, looks like the option is silent-discard not silent_discard.

Documentation is here: https://www.postfix.org/BDAT_README.html

Zimbra have kindly registered several RFEs, and one bug, for my suggested improvements in the Admin Console > Global Settings > Mobile > Registered Devices Window If you think these would be helpful in your environment, please register/login to pm.zimbra.com and upvote them. Please recall that Zimbr...

I'm not sure that's correct. Weitse's most recent document says that that attribute is supported in all versions of Postfix. I meant to say: which Zimbra's default config doesn't have enabled (unlike "smtpd_data_restrictions = reject_unauth_pipelining"). Aaahh! Ok then! Hopefully we'll ge...

That format looks correct.

You may also want to add at the top of that file:
To prevent nested spoofed From emails.

A more recent version of that document also recommends "smtpd_discard_ehlo_keywords = chunking" (to disable BDAT, which inherently allows pipelining), which Zimbra's Postfix config doesn't have. I'm not sure that's correct. Weitse's most recent document says that that attribute is support...

It's GC not LC for that attribute!
Hope that helps,
Mark