smtpd - possible to check "rcpt to" for valid adress?

[miessjue]

Hi,

ist there any chance to get smtpd to check for valid rcpt to adress, not only for valid domain?

Problem is: I get many many mails to not existing email adresses witch ar all passed by smtpd because the domain part of the adresses is valid. This causes heavy cpu load from scanning them with qmailscan etc.

Is there a solution to let smtpd response with something like
"553 sorry, that user is unknown" ?
(same as its done if domain is not in rcpthosts)

thanks in advance

Juergen

 

[thedaver]

Look into the CHKUSER patch from Tonix...

http://www.interazioni.it/opensource/chkuser/

There are a couple of other patches on qmail.org

http://www.qmail.org/

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/

 

[miessjue]

@thedaver: thanks a lot...

I'm now glad with

http://qmail-spp.sourceforge.net/

a nice patch for smtpd to call plugins.

Juergen