* Aniruddha <mailingdotl...@gmail.com>:
> Hi,
> 
> Most of my mails are delivered and send without  problems. However
> some domains reject e-mails with the error message below. What can I
> do to fix this? Is this a DNS error? Or a postfix config problem?
> Thanks in advance!
> 
> <>: host mxb.mail.widexs.nl[213.206.122.196] said:
>     550-Verification failed for <i...@redmijncomputer.nl> 550-It appears that
>     the DNS operator for redmijncomputer.nl 550-has installed an invalid MX
>     record with an IP address 550-instead of a domain name on the right hand
>     side. 550 Sender verify failed (in reply to RCPT TO command)

$ host -t mx redmijncomputer.nl
redmijncomputer.nl mail is handled by 10 95.97.73.154.

It should be mail.redmijncomputer.nl instead of 95.97.73.154
-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebra...@charite.de | http://www.charite.de
            

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