Hi all,

I have configured James as my local SMTP server. I am running James on a NATed machine on SMTP port 2525, I am able to send mails from my local Jmaes server to other mail servers like yahoo.com, hotmail.com etc. But if I send a mail to a yahoo user wrongly, say I have sent the mail to [EMAIL PROTECTED] and there is no user named [EMAIL PROTECTED], then I should get a error mail saying mail could not be delivered as there are no users named [EMAIL PROTECTED]

Please let me know if my following interpretation is right or wrong,

After receiving the mail yahoo mail server finds out that there is no user named [EMAIL PROTECTED] and send a mail back to the mail server which sent that mail. But as my sending mail server is behind NAT, yahoo mail server could not send the error mail back to my server. This is the reason I am not getting the error mails from yahoo.

If I run my public DNS server and SMTP server on a static IP, then the bounced mail first comes back to my mail server which will send a mail to my mail id with the bounce mail information.

To handle such scenarios what would be the best way to counter this problem, any suggestions from the group would be appreciated.

Gautam

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