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 …
I have Google’d around asked a lot of smart people and still can’t come up with a solid answer. More specifically, the question I have is: Why, when sending emails to certain domains, do I get the error: 451 Could not load DRD for domain Because I deal with fairly large mailing lists, I see …
I spent a while trying to set up DKIM with Postfix on CentOS 5.2. I read the HOWTOs on HOWToForge written by Andrew Colin Kissa (aka TopDog) who subsequently helped me towards getting this setup working. My setup is that I have a mail spooler and multiple mail senders. This is to say that the …
