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Starting this week, our emails to yahoo and aol accounts are not being delivered, but emails to other email accounts are working. Here is one of the yahoo error message: 1/12/2024 9:27:16 PM - Server at SJ2PR02MB10076.namprd02.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError' 1/12/2024 9:26:15 PM - Server at mta5.am0.yahoodns.net (67.195.204.73) returned '421 4.4.2 Connection dropped due to SocketError'
And here is the aol error message: 1/12/2024 9:27:38 PM - Server at PH0PR02MB7367.namprd02.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
1/12/2024 9:15:15 PM - Server at mx-aol.mail.gm0.yahoodns.net (67.195.204.80) returned '421 4.4.2 Connection dropped due to SocketError'
Using Classic Outlook on Windows for personal email, calendar, and contact management
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if you are not using DMARC or DKIM, make sure it is not enabled for the onmicrosoft.com domain as I outlined above.
Leave that enabled is ok too.
It should be OK to leave that enabled, but I had to turn it off before I could send emails to yahoo addresses. I don't see the harm in leaving it off, so that's what I'm going with.
Delete the "secureserver.net" one, your domain must be with GoDaddy and / or you had their email hosting before. It should no longer be needed.
Hi Jimmy,
I have attached my SPF record below. It is the same as you recommended but I am still not able to send emails to Yahoo customers.
TXT @ v=spf include:secureserver.net -all
TXT @ v=spf1 include:spf.protection.outlook.com -all
Any thoughts?
Thanks!
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if you are not using DMARC or DKIM, make sure it is not enabled for the onmicrosoft.com domain as I outlined above.
Leave that enabled is ok too.