error exim

[yantomulia]

I try to send email from test@sienera.com to yahoo mail check-nav@yahoo.com , but found this error.

2008-03-15 09:29:04 [471] SMTP connection from [203.41.255.41]:61347 I=[70.44.50.60]:25 (TCP/IP connection count = 1)
2008-03-15 09:29:06 [511] ident connection to 203.41.255.41 timed out
2008-03-15 09:29:06 [511] no host name found for IP address 203.41.255.41
2008-03-15 09:29:06 [511] list matching forced to fail: failed to find host name for 203.41.255.41
2008-03-15 09:29:08 [511] H=([192.168.0.88]) [203.41.255.41]:61347 I=[70.44.50.60]:25 Warning: Sender rate 3.3 / 1h
2008-03-15 09:29:09 [511] 1JaM8z-00008F-0X list matching forced to fail: failed to find host name for 203.41.255.41
2008-03-15 09:29:09 [511] 1JaM8z-00008F-0X <= yanto@simplywhy.com H=([192.168.0.88]) [203.41.255.41]:61347 I=[70.44.50.60]:25 P=esmtpa A=fixed_loginv@simplywhy.com S=732 id=20080315092902.46A8.YANTO@simplywhy.com T="test 412" from <yanto@simplywhy.com> for check-nav@yahoo.com lagikirim@yahoo.com
2008-03-15 09:29:09 [513] cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1JaM8z-00008F-0X
2008-03-15 09:29:09 [513] 1JaM8z-00008F-0X == check-nav@yahoo.com R=lookuphost T=remote_smtp defer (-53): retry time not reached for any host
2008-03-15 09:29:10 [511] SMTP connection from ([192.168.0.88]) [203.41.255.41]:61347 I=[70.44.50.60]:25 closed by QUIT

203.41.255.41 is my IP Address
70.44.50.60 is my Server IP

could any one give me some advise about that? thanks

[ReiJu]

2008-03-15 09:29:06 [511] ident connection to 203.41.255.41 timed out
2008-03-15 09:29:06 [511] no host name found for IP address 203.41.255.41
2008-03-15 09:29:06 [511] list matching forced to fail: failed to find host name for 203.41.255.41

Looks like your Ip doesn't have any PTR record. Here's the lookup result:

$ host -t ptr  203.41.255.41
203.41.255.41 does not exist, try again

You can ask your ISP to create PTR record for your IP and let's hope exim stops complaining about that.