Reply to post: Re: Wrong priority

Self preservation is AWS security's biggest worry, says gros fromage

Crazy Operations Guy

Re: Wrong priority

Now that we're out of virgin IPv4 space, anyone running a mail server should check to ensure that those IPs aren't on any of the major RBLs.

I had the same issue a few months back where my ISP allocated us a new /24 but it was black-listed, took a few emails to Spamhaus and a few others, but got everything cleared up. Doing this has more or less become a necessity in this day and age. Hell, you should be doing this periodically on blocks you already own.

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