Search found 97 matches

by DavidMerrill
Mon Nov 11, 2019 2:14 pm
Forum: Administrators
Topic: Error after restart
Replies: 1
Views: 397

Re: Error after restart

In this case with a stale PID-file, do as you're prompted. Stop all Zimbra services (confirm w/zmcontrol status) and see if /opt/zimbra/log/httpd.pid exists. If so cat the PID-file and see if there is a process with that number (I think there shouldn't be). Remove the file manually. Try restarting Z...
by DavidMerrill
Fri Nov 01, 2019 8:32 pm
Forum: Administrators
Topic: Subject editing based on email headers...
Replies: 6
Views: 1188

Re: Subject editing based on email headers...

Hi Jim, Thanks for sharing your thoughts on this. I wasn't clear on this statement? Given you probably digitally sign your domains, it would be harder to spoof and an additional clause could strengthen against FN/FP's? I like that there are some possibilities with Amavis/SA but was hoping (ha!) not ...
by DavidMerrill
Fri Nov 01, 2019 3:21 pm
Forum: Administrators
Topic: Subject editing based on email headers...
Replies: 6
Views: 1188

Re: Subject editing based on email headers...

Still kicking this around. It occurred to me that a nice place to be able to do this would be w/in Zimbra's mail filtering. There's no current convention for altering subjects, but I wondered if someone considered adding that functionality via a Zimlet. I've searched a bit & found this (which se...
by DavidMerrill
Fri Nov 01, 2019 1:36 pm
Forum: Administrators
Topic: Error encountered while renewing SSL certificate at zimbra
Replies: 1
Views: 266

Re: Error encountered while renewing SSL certificate at zimbra

Can you give more background? Ideally show us the commands that led to error.

Did google-ing produce any interesting hits (there's a lot unique-ish feedback to search with)?
by DavidMerrill
Thu Oct 31, 2019 7:57 pm
Forum: Administrators
Topic: Subject editing based on email headers...
Replies: 6
Views: 1188

Re: Subject editing based on email headers...

Still chasing down possibilities, it might be possible to clear this nugget by figuring out how to invoke the header_checks on a per domain basis?
by DavidMerrill
Thu Oct 31, 2019 7:41 pm
Forum: Administrators
Topic: Subject editing based on email headers...
Replies: 6
Views: 1188

Subject editing based on email headers...

Hi All, I've got a client who is pretty interested in pre-pending "(External Sender)" to the subject of any email they receive that does not come from their own domain. I've poked around with postfix header_checks and got a POC going (on an 8.8.15 deployment) on plain old subject-editing b...
by DavidMerrill
Fri May 31, 2019 2:31 pm
Forum: General Zimbra Feedback
Topic: Becoming Better
Replies: 7
Views: 3660

Re: Becoming Better

Hi John, Thanks for introducing yourself! I would certainly appreciate having Synacor/Zimbra participate in this community forum. (As you most likely know) There are many skilled enthusiasts here collaborating, offering helpful advice and sharing what they know & have experienced (I can say I've...
by DavidMerrill
Tue Apr 16, 2019 1:38 pm
Forum: Administrators
Topic: DKIM fails when email signature is activated
Replies: 11
Views: 3392

Re: DKIM fails when email signature is activated

Exploring DKIM as well, would love to hear more on this when details are available.
by DavidMerrill
Tue Apr 16, 2019 12:08 am
Forum: Administrators
Topic: Spam check for images?
Replies: 5
Views: 1256

Re: Spam check for images?

by DavidMerrill
Mon Apr 15, 2019 6:05 pm
Forum: Administrators
Topic: Spam check for images?
Replies: 5
Views: 1256

Re: Spam check for images?

Imagining there's some 3rd-party who's developed (developing?) a tool that leverages something like Amazon machine learning? - https://aws.amazon.com/blogs/machine-learning/classify-your-own-images-using-amazon-sagemaker/ The use case must be classsic, hand-off the image to the image-classifier, if ...

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