[GTALUG] Spamhaus block

[Alex Volkov]

Do you have reverse DNS records set up -- this is pretty much a 
requirement for running any mail server these days.

This mailing list kept getting blocked by Spamhaus when we used IPv6 
address to send out mail. I have no idea what was wrong with that, but 
the minute I turned off IPv6 everything went back to normal.

I remember there's an open-source mail config/blacklist checking website 
tool, but I don't remember its name.

Alex.

On 2019-02-21 1:24 p.m., Marc Lijour via talk wrote:
> Does anyone has insights about dealing with Spamhaus?
>
> I'm getting increasingly frustrated by being listed without 
> explanation. I run a very low bandwidth mail server and a website for 
> my business. I am running postfix with SPF, DKIM, and DMARC. I'd like 
> to know what I am missing.
>
> Spamhaus is very popular which in turn affects Twitter, LInkedIn, 
> beyond just the mail.
>
> Is it possible to run one's own mail server this days?
>
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