
Originally Posted by
chirpy
Exim does not impose a limit. However, there is a limit that you can set that will affect exim in WHM > Tweak Settings > The maximum each domain can send out per hour.
Also, many MTA's will reject a message if a particular email header record is too large - typically, if the delivery fileds are greater that 32768 characters
If the user wants to send to such a large list they really ought to be using a mailman mailing list - that's what they're for.
It's also possible that OE has some sort of restriction.