Bounce_block_limit

Question

Hi all... I'm currently trying on imposing limit on the attachment size a user sends out to external mail domains. I notice that adding "blocklimit <size>" at the channels in imta.cnf works. Users sending mails from the uwc do get error prompts when they attempt to send mails that exceeds the size limit, and I understand however, that the users using mail clients don't.
My point here is to get the users (who are using mail clients) get notified when their outgoing mails exceed the size limit. Searching through the docs I found this "BOUNCE_BLOCK_LIMIT" option that may be included in option.dat. Is this what I should be using? I seriously need some help from you guys on how to get this work.
Any help would be very much appreciated! Thank you!
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imsimta version shows: Sun Java(tm) System Messaging Server 6.2-4.03 (built Sep 22 2005)

Answer 1

Mail users will indeed be notified. If they're sending directly to this MTA, they will get a popup error message, saying that the size of their message is over the max allowed.
If they send to another server, which relays through, then they will get a DSN back from that server.
That's how smtp works....