On Exchange, I have set all maximum receiving size connectors to 80MB, every hub transport to 80MB, everything to 80MB as a maximum size..
My problem is when some user receives a message with one attachment larger than 16MB.
The pop connector downloads the message, puts it on the queue, and then fails to erase the message from the server, the message goes through and the user receives the message, but the on the queue you can see that the message is not deleted and get stuck (even dough the user does receives the message), then the pop connector downloads the message again and leaves it on the queue and so on, so then the transport role got stuck and now I can’t received nor send any messages because the transport role is stuck.
So every time the pop connector checks for new message, the queue gets bigger and bigger, and no messages are being delivered, the file mail.que get´s so big that I have to stop all services, deleted the files (loose all messages that where stuck on the queue) and then start the services all over again..
What is the cause of this?, How can I fix so the transport role wont get stuck with attachments bigger than 16MB???