Wolfgang Breyha <[email protected]> (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 > [email protected] 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 <[email protected]>: 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 -- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: 7CBF764A - gnupg fingerprint: 9288 F17D BBF9 9625 5ABC 285C 26A9 687E 7CBF 764A - (gnupg fingerprint: 3061 CFBF 2D88 F034 E8D2 7E92 EE4E AC98 48D0 359B)-
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