아래 글 올린 사람인데요....
센트메일랑 qpopper 사용하구요 이런게 나오네요..
[root@iloveyou mail]# mail -v papa at iloveyou.com Subject: 55
dd
.
Cc: 55
papa at iloveyou.com,88... Deferred: Connection timed out with localhost.com.
papa at iloveyou.com,55... Connecting to localhost.com. via relay...
papa at iloveyou.com,55... Deferred: Connection timed out with localhost.com.
[root@butiloveyou mail]# nslookup mail.iloveyou.com
Note: nslookup is deprecated and may be removed from future releases.
Consider using the `dig' or `host' programs instead. Run nslookup with
the `-sil[ent]' option to prevent this message from appearing.
Server: 203.241.0.0
Address: 203.241.0.0#53
Name: mail.iloveyou.com
Address:203.241.0.0
[root@butiloveyou mail]# nslookup ns.iloveyou.com
Note: nslookup is deprecated and may be removed from future releases.
Consider using the `dig' or `host' programs instead. Run nslookup with
the `-sil[ent]' option to prevent this message from appearing.
Server: 203.241.0.0
Address: 203.241.0.0#53
Name: ns.iloveyou.com
Address:203.241.0.0
[root@butiloveyou mail]#
Connection timed out with localhost.com 은 sendmail 이 로컬 호스트 이름 설정을 찾지 못해 발생합니다. /etc/hosts 와 sendmail 의 Cw 에 올바른 도메인을 넣고, nslookup 이 실패하지 않도록 DNS 설정을 확인하세요.
nslookup 은 이제 권장되지 않으니 dig 를 쓰세요.