Re: Hostname DNS error

2021-08-22 Thread Gerald Galster
> Could it be a transient DNS/network problem? If it only You can check which nameservers are responsible: 1) with dns (/etc/resolv.conf) [user@server ~]$ dig +short radio-z.net ns robotns3.second-ns.com. ns1.first-ns.de. robotns2.second-ns.de. 2) with dns (tracing from dns root, asking every na

Re: Hostname DNS error

2021-08-21 Thread raf
On Sat, Aug 21, 2021 at 10:34:36AM +0200, ludic...@gmail.com wrote: > Hi, > > I am having trouble receiving mail from this specific host: > > Aug 21 10:22:59 stretch postfix/smtpd[8394]: warning: hostname > mail.radio-z.net does not resolve to address 136.243.54.124 > Aug 21 10:22:59 stretch po

Re: Hostname DNS error

2021-08-21 Thread Wietse Venema
Matus UHLAR - fantomas: > >> Aug 21 10:22:59 stretch postfix/smtpd[8394]: warning: hostname > >> mail.radio-z.net does not resolve to address 136.243.54.124 > >> Aug 21 10:22:59 stretch postfix/smtpd[8394]: connect from > >> unknown[136.243.54.124] > >> Aug 21 10:22:59 stretch postfix/smtpd[8394]

Re: Hostname DNS error

2021-08-21 Thread Matus UHLAR - fantomas
Aug 21 10:22:59 stretch postfix/smtpd[8394]: warning: hostname mail.radio-z.net does not resolve to address 136.243.54.124 Aug 21 10:22:59 stretch postfix/smtpd[8394]: connect from unknown[136.243.54.124] Aug 21 10:22:59 stretch postfix/smtpd[8394]: 18D3F6A40A2B: client=unknown[136.243.54.124]

AW: Hostname DNS error

2021-08-21 Thread ludicree
Resolved - it was indeed a lookup problem. Thx! -Ursprüngliche Nachricht- Von: owner-postfix-us...@postfix.org Im Auftrag von Gerald Galster Gesendet: Samstag, 21. August 2021 11:09 An: Postfix users Betreff: Re: Hostname DNS error > Aug 21 10:22:59 stretch postfix/smtpd[8

Re: Hostname DNS error

2021-08-21 Thread Gerald Galster
> Aug 21 10:22:59 stretch postfix/smtpd[8394]: warning: hostname > mail.radio-z.net does not resolve to address 136.243.54.124 > Aug 21 10:22:59 stretch postfix/smtpd[8394]: connect from > unknown[136.243.54.124] > Aug 21 10:22:59 stretch postfix/smtpd[8394]: 18D3F6A40A2B: > client=unknown[136.2

Hostname DNS error

2021-08-21 Thread ludicree
Hi, I am having trouble receiving mail from this specific host: Aug 21 10:22:59 stretch postfix/smtpd[8394]: warning: hostname mail.radio-z.net does not resolve to address 136.243.54.124 Aug 21 10:22:59 stretch postfix/smtpd[8394]: connect from unknown[136.243.54.124] Aug 21 10:22:59 stretch po