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Ohio State University logo Office of Information Technology Technology Support Center (8help)

Mailing list daily message limits



Mailing lists on OIT's Listprocessor have a default daily message limit of 75 messages. This limit counts both regular single messages sent through the list as well as bounced messages returned to the list owner as undeliverable. A single message sent successfully to 300 subscribers only counts against the limit as one message, but if that message bounces back from 50 bad e-mail addresses, those 50 bounces each count as well, bringing the total to 51 messages.

If a list exceeds its daily limit, messages sent after the limit has been exceeded are placed in a queue, and the list owners get the following error message mailed to them:
    --
    Subject: Notification: list LISTNAME exceeded its daily limit

    List LISTNAME has exceeded its daily limit; no more messages will be processed until midnight, or until you manually FREE it with a

    FREE LISTNAME listpassword

    request sent to listproc@lists.acs.ohio-state.edu.
    --
It's possible to reset the counter for the day using the FREE command, as described above. Once the counter is reset (using the FREE command or at midnight), the queue of messages is processed until the limit is hit again. If there's a very large queue, it could take several FREE commands (or several days) before the queue is empty.

It's also possible to raise the daily message limit for a list. If you have a high traffic list, and would like more leeway, you can send e-mail to listproc@lists.acs.ohio-state.edu with no subject, and in the body of the message put:

conf listname listpassword message-limit ###

--where listname and listpassword should be replaced with the correct information for your list, and ### should be replaced with the desired new daily limit.

The daily message limit is included as a means of protecting the list owners and list subscribers (and their e-mail systems) from being flooded by a mail bomb or mail loop. In order to keep this protection in place, it's very strongly recommended that the message limit not be set to a very large number.

Current Record: 1426

Create Date: 08-26-2003
Last Reviewed: 11-26-2003
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