I am unable to send email. There is no error message but the mail goes straight to the outbox where it causes problems when I try to shutdown. I have no problem receiving email.
I am working on a Windows 10 PC and have recently connected to a VPN with AVG. Could this be the problem?
I have deleted all my Webmail messages.
I can send messages on my Telstra mobile with no problem.
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If you a trying to send Optus mail via a VPN it may not work. Turning your VPN off will answer that question.
Bosto There could be a dozen different reasons why your own private mail will send via Telstra and not Optus. What outgoing mail server are you using and what port?
Ok if this is your own private or business email then the problem might not be with Optus. The VPN can also complicate matters as the routing could be coming from anywhere. I would try turning the VPN off first and see if that fixes the problem. You may be able to simply change your outgoing mail to mail.optusnet.com.au without authentication if you cant get smtp.dreamhost.com to work. They do mention this in their email setup files.
At the bottom of step 3 it says some providers require you to use their mail servers. Using a POP account, outgoing server mail.optusnet.com.au port 25 no authentication is what I use to send my own private email. It's important that you don't have authentication ticket with using the same settings as your incoming server as it will not work. I can't tell you why it once worked and it now it doesn't. All I can tell you is the settings I use with my own private email that work with Optus.