* Tony Finch [2013-09-30 13:41]:
> I've just done a rough deliverability test to postmaster@TLD for the TLDs
> with MX records. This just checks that the RCPT TO command is accepted.
> The results show that even if your site will let you send mail to these
> domains, it still mostly won't work.

> [...]
> ua mr.kolo.net. BAD
> [...]

You may want to consider greylisting, ua works for me. I didn't test the
other ones, though.

Regards,
Matt

-- 
Universität Duisburg-Essen
Verteilte Systeme
Bismarckstr. 90 / BC 316
47057 Duisburg

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