POP / Winsock not sending external emails

[Acydman]

I have a program that uses POP3 via winsock to send emails via a user account we have set up. We have an exchange 2007 server. We've logged on OWA just make sure the account was working.

We cannot seem to send external emails from the account, internal emails work great. we host our own domain.

Anyone any ideas please?

 

[Zelandakh]

Do you need to allow Exchange to relay for the box these emails come in from?

 

[58sniper]

And POP3 is for receiving. Not sending.

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

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