Subject

• Other

Description

I noticed that i didn't receive some mails. When looking in the logs i found the following:

Jan 6 18:41:28 mail postfix/postscreen[1774]: CONNECT from [167.89.108.242]:35203 to [172.29.0.2]:25
Jan 6 18:41:34 mail postfix/postscreen[1774]: PASS OLD [167.89.108.242]:35203
Jan 6 18:41:38 mail postfix/dnsblog[1775]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.bl.spamcop.net: Host or domain name not found. Name service error for name=242.108.89.167.bl.spamcop.net type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for bl.spamcop.net
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for b.barracudacentral.org
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for bl.mailspike.net
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for bl.spameatingmonkey.net
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for list.dnswl.org
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for zen.spamhaus.org
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for dnsbl.sorbs.net
Jan 6 18:41:38 mail postfix/postscreen[1774]: warning: dnsblog reply timeout 10s for psbl.surriel.com
Jan 6 18:41:38 mail postfix/dnsblog[1776]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.b.barracudacentral.org: Host or domain name not found. Name service error for name=242.108.89.167.b.barracudacentral.org type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/dnsblog[1777]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.bl.mailspike.net: Host or domain name not found. Name service error for name=242.108.89.167.bl.mailspike.net type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/dnsblog[1778]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.bl.spameatingmonkey.net: Host or domain name not found. Name service error for name=242.108.89.167.bl.spameatingmonkey.net type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/dnsblog[1779]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.list.dnswl.org: Host or domain name not found. Name service error for name=242.108.89.167.list.dnswl.org type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/dnsblog[1780]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.zen.spamhaus.org: Host or domain name not found. Name service error for name=242.108.89.167.zen.spamhaus.org type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/dnsblog[1781]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.dnsbl.sorbs.net: Host or domain name not found. Name service error for name=242.108.89.167.dnsbl.sorbs.net type=A: Host not found, try again
Jan 6 18:41:38 mail postfix/dnsblog[1786]: warning: dnsblog_query: lookup error for DNS query 242.108.89.167.psbl.surriel.com: Host or domain name not found. Name service error for name=242.108.89.167.psbl.surriel.com type=A: Host not found, try again

Does anyone know why this is happening and how to solve it?