CiviCRM Community Forums (archive)

I set off a mailing yesterday by hand (civicrm/mailing/queue&reset=1) and in following up later in the day discovered that a number of people appeared not to have received anything.

The mailing report shows 82% completion and reports that it is still running.

a) any ideas what to do to help it complete or work out why it didn't would be appreciated.
b) how do I get it to complete, or send another mail to just those people who did not receive the first? I do know about excluding recipients of a previous mailing, but I am not sure how smart the system is - does it exclude everyone on the list (intended recipients) or does it exclude only actual recipients?

Update - triggering the queue again has edged the delivery on to completion, so that answers the first question, but I'd still like to know what happened and how to prevent it happening again.

I'm going to be fishing around for some server logs, though without any idea what I aught to be asking for!

I would suggest you contact your host or sysadmin and ask if there are limits to outgoing mails per hour or some such. Sometimes such limits will stop a CiviMail process, and not all hosts take the time to notify clients when that happens.