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Thank you Randy.

Considering 8.8.15-P15 release notes, it doesn't seem to be integrated in the NG module yet.
It's too soon to ask Zimbra's support about this.

There's this in ZeXtras current (3.1.4) documentation: How to backup on NFS/Fuse While at a first glance it might seem that due to the need of a local mountpoint specifically setting up the backup for NFS or FUSE has little utility, the backend differences in metadata handling ensure a greater degre...

Did you try to copy your current .ZDB to a test file then rename it to .PST?

That was you. Thank you for the solution.

have look to Proxmox PMG, https://www.proxmox.com/en/proxmox-mail-gateway It relies on the VRFY command for the callout. I remember someone asked about it a couple of weeks ago because there a issues with it (Zeta weekly calls) but I don't think I read how he fixed his issues (and if the fix surviv...

Thunderbird with TB-Sync (and DAV addon for TB-Sync) will sync mails (imap), contacts (carddav) and calendars (caldav).

If you want this to survive upgrades (and use all postfix routing possibilities), don't do it within ZCS. Create a new tiny VM running Postfix only (chose an OS with postfix >3, such as Ubuntu 18.04). Setup this postfix instance the way you want (allow relay for one domain, force transport for other...

Client side work-around (within Chrome) is : disabling "same-site-by-default-cookies" & "cookies-without-same-site-must-be-secure" in chrome://flags.

Hello. It looks like this issue but the other way round: https://forums.zimbra.org/viewtopic.php?f=15&p=298730 We've been using a zimlet that displays an external page for years (hosted antispam control panel) using a new tab in ZCS web interface and an iFrame within the tab. Since last Chrome, ...