Thanks all. Someone from Bluewin pointed this out as well. This should all be fixed soon. I appreciate the help.

best,

Maxim

On 12/8/23 12:55, Daniel Stirnimann wrote:

at least one delegation is broken:

ns1.init7.net: 200-30.135.144.213.in-addr.arpa. 86400 IN NS    dns.nazgul.ch. 200-30.135.144.213.in-addr.arpa. 86400 IN NS    dns.swill.org.

dig dns.swill.org ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16024 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

Daniel

On 08.12.23 11:49, Maxim Samo via swinog wrote:

...

Hi,

I'm getting "421 EHLO temporary error - PTR lookup failed" when trying to send any email to @bluewin.ch recipients.

My mailserver is mail.swill.org with proper PTR records configured though:

$ dig +short -t ptr 203.200-30.135.144.213.in-addr.arpa @8.8.8.8 mail.swill.org.

$ telnet 195.186.120.50 25 Trying 195.186.120.50... Connected to 195.186.120.50. Escape character is '^]'. 220 mxbw.bluewin.ch vimdzmsp-mxin03.bluewin.ch Swisscom AG ESMTP server ready ehlo mail.swill.org 421 EHLO temporary error - PTR lookup failed

Is there someone from bluewin.ch here that can help me work through this?

best,

Maxim

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