andrey.ivanov wrote:An easier workaround from Zimbra support :
Code: Select all
As a workaround please do the following on all mailbox servers
zmlocalconfig -e zimbra_use_owasp_html_sanitizer=FALSE
It did help me. Unfortunately it means that their new owasp sanitizing framework is disabled (https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.12/P3). But it fixes both attachments and printing problems,
This is the simplest and best solution -- the above rebuilding zgz files works for the attachment hell, but doesn't fix the unreadable HTML mail. I wish Zimbra were more responsive as an organization, and told us this two weeks ago.