- Plesk for Linux
- Plesk for Windows
Unable to send an email with the following message:
CONFIG_TEXT:554-web.de (mxweb111) Nemesis ESMTP Service not available
554-No SMTP service
554 invalid DNS PTR resource record, IP=203.0.113.2
On Linux servers the following error can be found in
CONFIG_TEXT: Aug 19 11:33:15 hostname postfix/smtp: ... ESMTP Service not available 554-No SMTP service 554 invalid DNS PTR resource record, IP=203.0.113.2
There is no PTR DNS record for the sender.
# dig example.com A +short
# dig -x 203.0.113.2 +short
The mail message is rejected due to the security policy on the recipient side.
Warning: The following is accurate only if Plesk handles the DNS management. If not, PTR record has to be added/changed on the side where DNS settings are hosted.
Configure a PTR record for the domain according to the article: