Block Hotmail / gmail accounts

[wontolla]

Hi, I need to block sending emails to domains like hotmal, gmail or yahoo, both ways full server and/or special users.

any help?.

[falko]

It might be possible to do this with smtpd_helo_restrictions:
http://www.postfix.org/postconf.5.html#smtpd_helo_restrictions

[wontolla]

Ok, I'll check and let you know, our ISPconfig server is working online succesfully since today, great soft guyz.