On 2006/01/25 14:09, Gabriel George POPA wrote: > More precisely, one day I've noticed that /var/spool/mqueue was full with > 30000 messages (in fact return messages, showing that some servers including > Yahoo! do not accept some mails from me).
Some people send bulk email by putting the intended recipient in the *sender* address in the envelope. Recipient address needs to be something that will generate a bounce message (rather than an SMTP error code) in an attempt to get the message body returned as part of the bounce message (I was told some years ago that people used to do this in the early days of email to avoid charges for sending messages on some pay-per-message systems). OpenBSD sendmail configuration files (at least on -current, I don't recall when it was added) use the "nobodyreturn" privacy flag in the mc-file, to make this a less-than-successful operation (since the intended payload isn't carried in the bounce report). This may or may not be the problem you're seeing: you'll have to look at the headers in the queued emails and analyse them to find out for sure.
