emails are bouncing back when sending to yahoo

Anonymous
2024-01-11T22:32:07+00:00

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'

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  1. Anonymous
    2024-01-16T23:29:31+00:00

    I have the same problem, but not just to Yahoo, its also AOL. Any help appreciated.

    This needs to be fixed asap!

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  2. Anonymous
    2024-01-16T22:24:31+00:00

    I am getting the same thing only when sending to Yahoo addresses:

    1/15/2024 11:58:49 PM - Server at SJ0PR07MB8664.namprd07.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
    1/15/2024 11:36:22 PM - Server at mta7.am0.yahoodns.net (67.195.228.110) returned '421 4.4.2 Connection dropped due to SocketError'

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  3. Anonymous
    2024-01-16T21:59:12+00:00

    I'm having the same issue only for my users it is yahoo, aol, and frontier and it's ONLY when they reply to an email sent to them by the recipient.

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  4. Anonymous
    2024-01-16T19:45:09+00:00

    My entire domain of 100 users cannot send to anyone at Yahoo Mail. We use Microsoft 365. The message attempts to be delivered for several days then returns:

    Message expired -> 421 4.4.2 Connection dropped due to SocketError'

    1/13/2024 4:49:09 AM - Server at mta6.am0.yahoodns.net (98.136.96.91) returned '421 4.4.2 Connection dropped due to SocketError'

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  5. Anonymous
    2024-01-15T19:00:47+00:00

    Hi Ankita,

    We are now receiving this error message:

    Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'

    please advise!

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