ff 3.0.15
am receiving mail but select sends are failing.
User-Agent: RoundCube Webmail/0.3-stable
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=UTF-8
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
xxx@xx.xx.com SMTP error from remote mail server after initial connection:
host cdptpa-smtpin01.mail.rr.com [75.180.132.243]:
554 5.7.1 - Connection refused. IP name lookup failed for 67.43.61.4