Not rejecting unknown users on Submit channel

Question

I am running Java Communications Suite 6.3(2) on a single system. Currently, when one of my customers sends an email (from a thick client) through the Submit port, and one of the addresses is to an invalid address in a domain on this server, the customer receives a pop-up error on their workstation and no email is sent. If there is an invalid address to a different server domain, the message is accepted and the customer receives a return email with the error message. Customers find it confusing to deal with two different types of error processing.
I would like to have mail sent through the submit channel (and ONLY the submit channel) handled such that the customer does not get a rejection during the SMTP dialogue, but has the email delivered to all valid recipients and receives a separate, email message with errors about the undeliverable addresses. I have a couple of questions about this configuration:
1) Is it even possible? My fantasy is that it is just a keyword option. But it seems more likely that, if it can be done, it would have to be by routing through different channels (possibly locally written channels).
2) Is this even a good idea? Might there be some horrible repercussions that I'm not seeing?
Thanks

Answer 1

dpalix2 wrote:
1) Is it even possible? My fantasy is that it is just a keyword option. But it seems more likely that, if it can be done, it would have to be by routing through different channels (possibly locally written channels).You can achieve this by adding the "acceptalladdresses" keyword to the tcp_submit channel definition in imta.cnf.
http://msg.wikidoc.info/index.php/Acceptalladdresses%2C_acceptvalidaddresses_Channel_Options
2) Is this even a good idea? Might there be some horrible repercussions that I'm not seeing?If you only add this keyword to the tcp_submit channel it should be fine. Make sure you also add "LOG_USERNAME=1" to your option.dat file so you can track down which authenticated user is sending email -- should you need to track down emails to a given authenticated sender.
Regards,
Shane.