Internal sendmail problems
mark at blackmans.org
Wed Jan 2 16:26:07 GMT 2008
On 2 Jan 2008, at 16:15, O'Connor, Kevin wrote:
> I ran tcpdump as you suggested and I'm seeing lots of the following
> 15:53:08.372068 IP (tos 0x0, ttl 64, id 25688, offset 0, flags
> proto: UDP (17), length: 57, bad cksum 0 (->ac3a)!) 10.10.0.4.58007 >
> 10.10.86.10.53: [bad udp cksum 5042!] 46723+ AAAA?exchcluster. (29)
> 15:53:08.372708 IP (tos 0x0, ttl 126, id 7951, offset 0, flags [none],
> proto: UDP (17), length: 57) 10.10.86.10.53 > 10.10.0.4.58007: [udp
> ok] 46723 ServFail q: AAAA? exchcluster. 0/0/0 (29)
> I have assumed that sendmail on FreeBSD has sendmail's
> WorkAroundBrokenAAAA option but this appears to either not be the case
> or the option fails to resolve the IP6 issue with W2K3 DNS servers.
> At this point any and all suggestions (That do not involve removing MS
> DNS and/or Exchange) would be welcome.
appears to spell out the issue. I'd suggest rebuilding sendmail
use the ports system to replace sendmail with a different MTA,
my personal preference is postfix.
Possibly, you could rebuild the resolver library with different options
as well. To be honest, I'm surprised this issue still exists over a year
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _
> This e-mail and any files transmitted with it are confidential and
> solely for the use of the individual or entity to whom they are
> If you have received this e-mail in error please notify the
> originator of the message.
> Any views expressed in this message are those of the individual
> except where the sender specifies and with authority, states them
> to be
> the views of Merseyside Fire & Rescue Service, (MFRS).
> Incoming and outgoing emails may be monitored in line with current
> Steps have been taken to ensure that this email and attachments are
> free from any virus. In keeping with good computing practice the
> recipient should ensure they are actually virus free.
> ------ FreeBSD UK Users' Group - Mailing List ------
More information about the Ukfreebsd