postfix: Temporary lookup failure
- by mk_89
I have followed the tutorials step by step for installing and configuring postfix
https://help.ubuntu.com/community/Postfix
https://help.ubuntu.com/community/PostfixBasicSetupHowto
I am trying to test the services to whether Temporary lookup failure error
telnet localhost 25
250 2.1.0 Ok
rcpt to: fmaster@localhost
451 4.3.0…