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What's the limit of maximum recipients from's SMTP?

AntDudeAntDude Posts: 103 ✭✭✭✭
edited November 25 in Email Nov 25, 2021


Happy Thanksgiving! :)

I'm trying to send a personal short annual Happy Thanksgiving e-mail to 114 addresses, but got "The size of the message you are trying to send exceeds a temporary size limit of the server. The message was not sent; try to reduce the message size or wait some time and try again. The server responded:  4.1.1 qKDdmOdQJIjNRqKDdmaegf internal error. Please see for more information. AUP#Out-1550." from SMTP server. Its link says "1550 Your email was rejected for having too many recipients in one message. Reduce the number of recipients and try again later." :( Does anyone know what's the maximum limit?

Thank you for reading and hopefully answering soon. :)

Best Answer

  • William_MWilliam_M Posts: 33 MOD
    Nov 26, 2021 Accepted Answer

    Hi! It sounds like you are just over the limit. You can include up to 100 recipients in the "To" field on a single email and a total of 100 recipients within an hour.


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