higuita:
> Hi
>
> On Tue, Nov 26, 2013 at 11:14:30AM +0100, Benny Pedersen wrote:
> > china is known for blocking port 25 :/
> (...)>
> > depending of your isp, there is not much other ways to solve then hope
>
> You might want to try to relay all emails to your ISP mail server,
> by using the relayhost = [hostname_or_ip_for_the_isp_mail_server]
And if their port 25 is blocked, too, try port 587 (submission):
relayhost = [hostname_or_ip_for_the_isp_mail_server]:587
See higuita's comments below for authentication.
See also: http://www.postfix.org/SOHO_README.html#client_sasl_enable
Wietse
> If your ISP require authentication, you need to enable the smtp SASL
> auth for that host:
>
> smtp_sasl_auth_enable = yes
> smtp_sasl_password_maps = hash:/etc/postfix/client_sasl
>
>
> where the client_sasl have:
>
> hostname_or_ip_for_the_isp_mail_server username:password
>
>
> (dont forget to postmap the /etc/postfix/client_sasl)
>
> good luck
> higuita
>