Here are a few handy items for [tag]Postfix[/tag] [tag]email[/tag] server users: 1. If your system is acting as a spam / antivirus / relay server for secondary internal servers, and your destination mail server is down, postfix will queue your messages to resend at a later time. In order for postfix to instantly re-queue these [...]
Categories: Email,System Administration
Tagged: destination mail server, open source software, relay server
Well I got a lesson in properly configuring your e-mail server’s error messages. Since setting up postfix as a anti-spam and anti-virus gateway for my exchange system (see my article Postfix as proxy to exchange server), I had left the option soft_bounce = yes enabled in my postfix configuration. This worked fine for months. However, [...]
Categories: Configurations,Email
Tagged: e-mail server, remote server
If your [tag]Mozilla Thunderbird[/tag] is slow to open the inbox, or any other folder for that matter, there are two things that you can do to try to fix this problem. Step #1: The first thing is to try to compact the folder. This should help if you have a large inbox. If you can’t [...]
Categories: Configurations,Email,Programs
I recently had a problem where my [tag]Spamassassin[/tag] install started thinking that a lot of [tag]spam[/tag] messages were really ham (non-spam). Since these were getting BAYES_00 scores of -2.5 they were almost all getting through my spam filter. These particular messages all were regarding STOCK quotes and were pretty obviously spam just by looking at [...]
Categories: Configurations,Email,Linux,Shell,System Administration
Tagged: spamd server
More and more people seem to be using an open source mail server on linux, such as Postfix, to proxy e-mails coming in from the net and relaying them to their exchange server. I know I’ve had this type of setup since January and it has been working really well for me. It gives you [...]
Categories: Email,Linux,Perl,System Administration,Windows
Tagged: Chris Covington, exchange server postfix server, GUI, Linux, open source mail server
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