Outlook Can Receive but not Send with Certain Wifi Networks [Solved/Closed]

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I moved my PC to a new home and found that my Outlook can receive but not send when connected to the home's wifi. When I set up a hotspot on my phone the problem was solved. I found the same thing when I was traveling with my PC: at some hotels/friend's houses it would work, and at others not.

Really appreciate any help.


1 reply

It is because, each network has its own SMTP authorization server, and you must authenticate against each networks server before you can RELAY an SMTP messAge!
Thank you

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