Re: What is the proper way to deal with non-existing e-mail addresses?

[Aniruddha]

Thanks for the help all! Now I see that because the e-mail is rejected
during the connection phase the mails never were send in the first place.
And because of this the mail delivery failure is only received by the one
who originally send it, even if he spoofed a domain. I thought these
'mail delivery failure' reports were also a possible source of backscatter.
Thanks again!