[TriLUG] Sendmail question

[Mark Fowle]

Are there any sendmail guru's out there?  I've seen this in my maillogs 
and I'm not sure what's going on - I have tested the environment for 
relaying (and it doesn't - except for what's authorized) - plus I have 
added my SPF records to the zone files....
 ... clip....
Jan 23 20:15:58 adelie1 sendmail[27321]: j0O1FqAQ027321: 
<fletcher at thefowles.com>... no
Jan 23 20:15:59 adelie1 sendmail[27321]: j0O1FqAQ027321: lost input 
channel from [222.233.142.168] to MTA after data
Jan 23 20:15:59 adelie1 sendmail[27321]: j0O1FqAQ027321: 
from=<marylou.wigginsel at 163.net>, size=0, class=0, nrcpts=0, 
proto=ESMTP, daemon=MTA, relay=[222.233.142.168]
Jan 23 20:16:05 adelie1 sendmail[27322]: j0O1G4DF027322: 
<barber at thefowles.com>... no
Jan 23 20:16:05 adelie1 sendmail[27322]: j0O1G4DF027322: 
<battle at thefowles.com>... no
Jan 23 20:16:06 adelie1 sendmail[27322]: j0O1G4DF027322: 
<barr at thefowles.com>... no
Jan 23 20:16:06 adelie1 sendmail[27322]: j0O1G4DF027322: 
<benjamin at thefowles.com>... no
Jan 23 20:16:06 adelie1 sendmail[27322]: j0O1G4DF027322: 
<huber at thefowles.com>... no
Jan 23 20:16:06 adelie1 sendmail[27322]: j0O1G4DF027322: 
<howe at thefowles.com>... no
Jan 23 20:16:07 adelie1 sendmail[27322]: j0O1G4DF027322: 
<houston at thefowles.com>... no
Jan 23 20:16:07 adelie1 sendmail[27322]: j0O1G4DF027322: 
<ibarra at thefowles.com>... no
Jan 23 20:16:07 adelie1 sendmail[27322]: j0O1G4DF027322: 
from=<YZUOMGCYA at earthlink.net>, size=0, class=0, nrcpts=0, proto=SMTP, 
daemon=MTA, relay=96.250.216.81.pite.siwnet.net [81.216.250.96]
Jan 23 20:16:08 adelie1 sendmail[27322]: j0O1G4DG027322: 
<hurley at thefowles.com>... no
Jan 23 20:16:08 adelie1 sendmail[27322]: j0O1G4DG027322: 
from=<zbgwfnrgf at telusplanet.net>, size=0, class=0, nrcpts=0, proto=SMTP, 
daemon=MTA, relay=96.250.216.81.pite.siwnet.net [81.216.250.96]
....clip.....
They don't appear to be getting in.. but the non-exsitent users @ my 
domain are my concern....   or am I worrying over nothing?

Thanks,
Mark