[exim-dev] GMX/WEB.de problems (was: dmarc error)

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Συντάκτης: Heiko Schlittermann
Ημερομηνία:  
Προς: exim-dev
Αντικείμενο: [exim-dev] GMX/WEB.de problems (was: dmarc error)
Wolfgang Breyha <wbreyha@???> (Mi 16 Okt 2013 20:54:13 CEST):
>
> PS: GMX rejects messages for your domain with:
> Requested action not taken: mailbox unavailable
> invalid DNS A/AAAA resource record. Please check the message recipient
> exim-dev@??? and try again.


It seems that GMX and WEB.de had DNS problems today. They started
rejecting mails from us already at MAIL-FROM with about the same
excuse "invalid DNS A/AAAA resource record".

2013-10-16 16:21:40 H=mail._______.de (udo._______.__) [217.__.___.__] I=[84.19.194.3]:587 F=<uta.________@_______.de> rejected RCPT <________.sebastian@???>: response to "MAIL FROM:<uta.________@_______.de>" from mx00.gmx.net [213.165.67.99] was: 550-Requested action not taken: mailbox unavailable\n550 invalid DNS A/AAAA resource record


But I think we've quite a normal DNS and MX setup for the sender domain in question:


_______.de.             3600    IN      MX      20 hh.schlittermann.de.
_______.de.             3600    IN      MX      10 ssl.schlittermann.de.


;; ADDITIONAL SECTION:
ssl.schlittermann.de.   3161    IN      A       212.80.235.130
hh.schlittermann.de.    3117    IN      A       213.128.132.49



The names from the EHLO (mail._____.de and udo.____.de) refer to the
same IP

    udo     CNAME   mail
    mail    A       217…


    217…    PTR     mail


    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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