Intranet can't connect smtp from Intranet

[akong]

Hi,
I has used pfsense 1.0.1 version.
My LAN network is 192.168.100.0/24
My OPT network is 192.168.2.0/24
In my OPT network.
I have a mail server.
IP is 192.168.2.250
In my LAN network.
I have client system.
When I open Thunderbird want recivice my mail.
I can connect my mail server.
But if I want send mail.
The error message will show I can't connect my mail server.
Is have any specially settings?

[c.lakey]

Hi akong,

Have you the appropriate rules in place allowing your LAN (Client Workstation) to access your OPT interface (Mailserver)?

Are you connecting via SMTP or POP or IMAP or RPC/HTTPS..?

Dependant on the protocol being used, you would need to allow traffic to different ports on OPT1.

If this makes sense?

Cheers.