Tag: zimbra

Disable Zimbra’s duplicate mail detection

Zimbra can discard duplicates of incoming mail. This has certain advantages, but for us, where different people use the same account with different identities, this prevents a message from being delivered to multiple virtual inboxes. Read More »
By halfgaar, 2 months ago, on January 18, 2010, at 13:01 | No comments

Lowering Bayes score for Zimbra’s Spamassassin config

The Spamassassin config in Zimbra has a very high default score for bayes matching of 99, 95, 90, etc, percent. A mail with subject and body "test" or "asdfaewf a" is often marked as 99% bayes, even though the spamfilter has seen no training mail. This is absurd. Read More »
By halfgaar, 2 months ago, on January 18, 2010, at 02:01 | No comments

Configuring fetchmail to deliver to Zimbra with custom header added

I needed to fetch mail from a POP3 account and deliver it to a Zimbra account. Because I'm doing this for multiple POP3 accounts, I want to add a header which I can use in Zimbra to filter. This is what we made: Read More »
By halfgaar, 2 months ago, on January 17, 2010, at 20:01 | No comments

Fixing spamassassin rule in Zimbra

Spamassassin has had a bug for a while, marking any mail from 2010 and later as spam because it's from "far into the future". This was very crudely done as this regexp: /20[1-9][0-9]/. Because of that, almost all mail from 2010 onward is marked as spam. Read More »
By halfgaar, 2 months ago, on January 17, 2010, at 20:01 | No comments

Set proper origin domain for Zimbra server

I have a zimbra server fooled into thinking it hosts a particular domain. Part of the fooling involves setting a different SMTP server than localhost for all outgoing mail. Luckily, Zimbra can do that. Read More »
By halfgaar, 2 months ago, on January 12, 2010, at 16:01 | No comments

Disabling Zimbra’s spam learning

Zimbra learns ham and spam by sending it to certain mailboxes. For our setup, this doesn't work (easily), because our server is configured to always send mail to another SMTP server and not do any local delivery. I did that, because our zimbra server is not actually on the domain it thinks. Read More »
By halfgaar, 3 months ago, on December 21, 2009, at 15:12 | 1 comment

LDAP search filter for Thunderbird and Zimbra

When configuring an LDAP addressbook, one thing that has given me a lot of trouble, is the LDAP filter. Here are two I use. Read More »
By halfgaar, 3 months ago, on December 10, 2009, at 21:12 | No comments