Are you saying that this cannot be done with other mail programs like
sendmail, postfix, etc? (I am assuming that he/she is telneting to port 25
and entering SMTP commands, one by one.)
If other mail programs are the same, then the next question would be; do
the log files record the IP address of the machine from where this
"spammer" is working this process from?
If so, then I suppose one could detect and block the access from these
IPs. I am not sure if "badmailfrom" will work with IPs. Will it accept
"@IP-address" format? hmmm...
SFQ
At 08:43 PM 6/17/01 +0400, Artem Koutchine wrote:
>Hello!
>
>The solution to my problem might or might not be related
>to the vchkpw, so i'll try to find help here anyway.
>
>The problem is that if there is a virtual domain: bbb.zz
>and there is a user [EMAIL PROTECTED] and the whole thing
>is located at address ADDR then any spammer
>can connect to smtp port on addres ADDR enter
>[EMAIL PROTECTED] as FROM address (MAIL FROM) and
>spam a bunch of people. All the victims will think
>that [EMAIL PROTECTED] is doing it to them. Relaying is
>allowed in this case, since bbb.zz is a local domain.
>
>How can I solve the problem? SMTP authorization?
>but how? Any other ways?
>
>Regards,
>Artem
