Using Classic Outlook on Windows for personal email, calendar, and contact management
I had same issue but GoDaddy (my domain provider) was well aware of issue, updated my DNS settings and now all e-mails are going through.
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getting these two error messages when sending to yahoo
1/11/2024 3:34:15 PM - Server at DS0PR14MB7526.namprd14.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
1/11/2024 3:24:36 PM - Server at PH0PR14MB6715.namprd14.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to ConnectionReset'
Using Classic Outlook on Windows for personal email, calendar, and contact management
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I had same issue but GoDaddy (my domain provider) was well aware of issue, updated my DNS settings and now all e-mails are going through.
how do you actually get support on the phone?
It is really an easy fix once you contact Microsoft (admin must contact them) and they put in the codes to show you are a legit account. This happened due to Yahoo putting in higher security to try and keep spammer out but in the process blocked legit businesses. GLAD MINE IS FIXED! Now back to selling vacation packages.
After reading replies from some others here it triggered a vague memory of something I read recently. I did a little digging and found it:
Microsoft & Yahoo did in fact announce new email authentication requirements to be effective FEBRUARY 2024. Looks like somebody jumped the gun a bit.
we got the problem resolved. Microsoft had us update the SPF, DKIMand DMARC