postfix/smtp: fatal: unknown service: smtp/tcp
Issue
- Following messages are generated:
postfix/smtp[24756]: fatal: unknown service: smtp/tcp
postfix/qmgr[11099]: warning: private/smtp socket: malformed response
postfix/qmgr[11099]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description
postfix/master[11097]: warning: process /usr/libexec/postfix/smtp pid 24756 exit status 1 status=deferred (unknown mail transport error)
Environment
- Red Hat Enterprise Linux
- Postfix
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.