Re: sending mail via a script
On Mon, 15 Jul 2019 10:34:44 +0000
Andy Smith <andy@strugglers.net> wrote:
> Hi Pierre,
>
> On Sun, Jul 14, 2019 at 06:17:50PM +0200, Pierre Frenkiel wrote:
> > I tried with mail.mailutils, and I get the following error:
> >
> > << 550-5.7.1 [2a01:e35:8a7f:9c50:2e4d:54ff:fed0:5806] Our system
> > has detected that <<< 550-5.7.1 this message does not meet IPv6
> > sending guidelines regarding PTR <<< 550-5.7.1 records and
> > authentication. Please review <<< 550-5.7.1
> > https://support.google.com/mail/?p=IPv6AuthError for more
> > information
>
> If sending email to Gmail over IPv6 you absolutely require matching
> forward and reverse DNS and some email IP authentication mechanism
> such as SPF and/or DKIM. If you can't do this, disable IPv6 in your
> mail server either in general or when sending to Gmail (could be
> tricky because this affects Google Apps For Your Domain also, so you
> don't necessarily know all the domains).
>
> You will have an easier time over IPv4 as Gmail relax their SPF/DKIM
> requirement, though can still avoid unwanted trashing of your email
> by implementing SPF and/or DKIM.
>
They have a damn cheek, as they don't appear to do anything to stop
their own customers sending out spam, nor (last time I tried) did they
either accept email to 'abuse' or provide any other means to report
email abuse by their customers.
--
Joe
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