At 00:38 +0900 16 Jun 2004, Sam Roberts <sroberts / certicom.com> wrote: > For what it's worth, it's an invalid Message ID. I don't know > who is generating it, either sendmail or mutt. Both might > claim that there is a bug in whatever call they are making > to the OS to get the host name, but its still wrong. Mutt generates its own Message-ID headers so that they'll be present in FCCed copies. It *is* working with invalid data, but the hostname that it gets from the OS is only used as the default for the $hostname variable. If you provide your own value for that, it will be used instead. You can do that by putting a line like the following in your .muttrc file: set hostname="valid.domain" -- Aaron Schrab aaron / schrab.com http://www.schrab.com/aaron/ You must realize that the computer has it in for you. The irrefutable proof of this is that the computer always does what you tell it to do.