Outgoing mail suddenly won't send

For years I've had a POP account, using Mac Mail to send and rec ATT/Yahoo mail. In the past week or so, my account has decided it won't send anything and says the server can't be accessed. However, incoming mail works fine, and my wife's POP account on another log-in with ATT/Yahoo mail also works fine sending and receiving. I tried deleting my account and starting over, which allowed me to send one email successfully. Next time I logged in, though, it was back to balking. Any ideas?

Hey, I found a fix for Mac who use ATT / UVerse / Yahoo!!
The directions that are given by ATT are only good for setting up an ATT e-mail account on a Mac. If for some reason you need to use another provider (gasp!) their settings will NOT work. The workaround is to have an agent open up port 25 so that you can use another outgoing smtp server. In my case, my provider is fatcow.com (really!). So once port 25 was opened up I could add smtp.fatcow.com as an outgoing mail server. In that case, they do require password authentication. Your case may be simpler and you may not need authentication at all (Inisight, WOW, RoadRunner etc.)
So it is possble, despite the dearth of information on ATT's UVerse web site. : P
Cheers,
: )

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