I work with email and Postfix. On every mailing machine I have Postfix setup on, I have at least 2 instances, sometimes more (in fact, sometimes its as many as 6 instances). I was recently setting up a new set of mailers and decided to give Postfix multi-instance seutp a try. It was excellent. There …
My company signed a contract for a provider that uses TZO as their DNS provider. Now I have used TZO before (circa 2006-2007) and although their interface was archaic and there was no API, I accepted it because I was told they were reliable. As it happens, the service was fantastic and they are very …
I recently had to setup daemontools on a CentOS system. I had set it up before but it had been a while. So I Google’d around and found very little and what little I did find wasn’t very helpful. So here is a quick and dirty on setting up daemontools. I even included the CentOS …
On the same day that Goodmail removed Yahoo! from its pool, it added the vastness of Microsoft domains. These domains include hotmail.com, live.* and msn.com. The addition of Microsoft to the Goodmail community is a good thing because it means that Microsoft is starting to play ball in the email community. However it comes as …
So as of today, Yahoo! will no longer be accepting Goodmail imprinted messages. There is currently no press release from Goodmail, but I am sure one will be forthcoming. The latest reference to the on goings is listed here in one of their recent blog posts. Goodmail claims that they are doing everything possible to …
This is the most comprehensive list of feedback loops that I have been able to find and put together. If there are others that you know of, please let me know and I’ll add them. The other item that should be noted is that some ISPs don’t have a feedback loop and just respond to …
As regular readers of this blog know, I am in the process of trying to back up Google Apps accounts to Dovecot. Well I have finally found my solution. Not only does it work, but its in Ruby. First thing that you’ll need to do is grab yourself a copy of Larch. I did this …
I have been trying to find a way to copy everything from a Gmail account to a Dovecot mail server. The way I have ended up doing it so far is simply by using Apple Mail (if you regularly read this blog, you’d know that I use a Mac). The steps are as follows: Create …
I couldn’t find a quick and dirty list of commands for setting up a slave DNS server so I figured I would just throw it together. Starting with a fully working primary name server, we are going to set up a slave name server. We are going to make the following assumptions: primary – 1.2.3.4 …
Ever since I started doing Capistrano deploys from my Mac, I have been seeing the following error: zlib(finalizer): the stream was freed prematurely. The error seems harmless, but I figure that errors are there for a reason and the Sysadmin in me decided to try to get rid of it. A quick Google for an …
