Email system test

[DrMasik]

I was send test message from my domain and e-mail server:

Code:

2015-11-25 21:58:40 [19595] 1a1gBw-000560-QQ H=github.map.fastly.net [185.31.17.133]:25 Operation timed out
2015-11-25 21:58:40 [19593] 1a1gBw-000560-QQ == support@cuberite.github.io <support@cuberite.org> R=dnslookup T=remote_smtp defer (60): Operation timed out
2015-11-25 22:00:36 [19759] cwd=/var/spool/exim 2 args: /usr/local/sbin/exim -q
2015-11-25 22:00:36 [19759] Start queue run: pid=19759
2015-11-25 22:00:37 [19761] 1a1gBw-000560-QQ == support@cuberite.github.io <support@cuberite.org> R=dnslookup T=remote_smtp defer (-53): retry time not reached for any host
2015-11-25 22:00:37 [19759] End queue run: pid=1975

Is it right IP and DNS for the e-mail servers?