40 Host Or Domain Name Not Found Sendmail New

Relay none delay 0 01 delays 0 01 0 0 0 dsn 4 3 5 status deferred host or domain name not found.

Host or domain name not found sendmail. A dns query for somedomain gov says. Some mails are sent and delivered without any problems eg gmail while others are deferred with sender address rejected. Host not found.

Or actually you can just find the line in your etc mail sendmail cf that reads smart relay host may be null underneath will be ds you can put in your smart host i m assuming you mean your domain s smtp server which is what is meant by a smart host dsmysmtpserver like that with no space between ds and the server then restart sendmail. Name server host not found. Active 4 months ago.

Host unknown name server. I had a problem sending an email to a local address. Domain not found i understand that this is a spam protection measure whereby a lookup is done on the sending domain but our domain has mx records.

Sendmail host not found post by markkuk mon nov 17 2008 2 35 pm if you want to use an ip address instead of a dns name in a mail address you must enclose it in brackets.