[exim] How to limit too many recipients from mailing list

We want to ensure that when sending a message to a mailing list, we
don't send messages to too many recipients as Yahoo, AOL usually will
block our gateway as a result. The best way is to split the message so
that the number of recipient are within a limit of say 100 max. What is
the best way of achieving this. Usually, people send it to a list and
there is no way of knowing how many recipients there are in a particular
list, as some list will contain 1000 users and some may be 50.



We have set max_rcpt=30, but I have a feeling that, the message_id
remains the same for all the deliveries and as such Yahoo/AOL will go by
message_id and max_rcpt will have no effect.





Regards



Sujit Choudhury | IT Services

Birkbeck, University of London