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Cannot Send Emails on Frontier.com

  • 3 cavab
  • 1 has this problem
  • 4 views
  • Last reply by Matt

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Good day, 1st time I have needed help with Thunderbird in years of use. Over the last several weeks I have been getting the following message when trying to send emails:

"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: 4.7.1 <unknown[50.34.156.151]>: Client host rejected: mvhdr@frontier.com exceeded hourly recipients threshold.."

I contacted Frontier and the tech tried several things; no help; she decided problem is not on their end. She changed my Frontier PW and it worked again for 2 days, then no more. I can send from Yahoo and I receive email fine on Thunderbird. I do not send large emails or multiple addresses. Windows 10 machine. Thanks for any help!!

Good day, 1st time I have needed help with Thunderbird in years of use. Over the last several weeks I have been getting the following message when trying to send emails: "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: 4.7.1 <unknown[50.34.156.151]>: Client host rejected: mvhdr@frontier.com exceeded hourly recipients threshold.." I contacted Frontier and the tech tried several things; no help; she decided problem is not on their end. She changed my Frontier PW and it worked again for 2 days, then no more. I can send from Yahoo and I receive email fine on Thunderbird. I do not send large emails or multiple addresses. Windows 10 machine. Thanks for any help!!

All Replies (3)

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open the outgoing server (SMTP) entry in account settings and check your frontier SMTP setting uses a user name and that authentication is required I have seen that message appear when the server is set to authentication not required (so you are not logged it, so you have a zero sending limit)

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Thanks Matt. After posting this question I found the 9 pages of info on my same problem. I followed the info on changing to smtp.mail.yahoo.com and other setting changes and I can once again send my emails. Thanks to all for the help!

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Could I redirect your attention over here https://bugzilla.mozilla.org/show_bug.cgi?id=1698316 as the result of the bug directly affects you. I do not know if you could assist the developer in the matter, but even it you can not it might be worth following along.