On 2000-01-24 16:25:49, Christopher S. Swingley wrote: > Jan 24 16:18:57 denali sendmail[17441]: NOQUEUE: Authentication- > Warning: foo.bar.edu: Host bar.foo.edu [200.200.10.10] claimed > to be bar
Looks like sendmail does a reverse dns lookup on a connecting host and find that the IP doesn't match the hostname. It therefor suggest that someone messing around (authentication warning). Are you controling relay using domain or IPs? Check hostnames against your dns records for the machines mentioned in the log event. /Allan -- Allan M. Wind Email: [EMAIL PROTECTED] P.O. Box 2022 Phone: 781.279.4513 (home) Woburn, MA 01888-0022 Phone: 781.274.7000 ext. 368 (work)
