Re: [courier-users] DNS MX lookup failed

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Grzegorz Janoszka writes:

>
> Aug 3 09:52:15 poczta courieresmtpd:
> error,relay=::ffff:193.41.230.201,from=<mBIZNES_de bet@mBank.pl>: 417 SPF
> error mBIZNES_debet@mBank.pl: DNS MX lookup failed.?
>
> Is any way to remove such errors?
>
> This machine has no problem to see MX:
>
> poczta:~# host -t mx mbank.pl
> mbank.pl mail is handled by 0 mail.bremultibank.com.pl.
> mbank.pl mail is handled by 10 mx.bremultibank.com.pl.

One single DNS lookup doesn't really say much. Perhaps mbank.pl's DNS
servers are flaky, or one of .pl's servers was briefly on a fritz.



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