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Emails will not send

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First of all, I have Thunderbird on three computers and this issue is occurring only on one of them. In my office computer Thunderbird program I have 9 email addresses. Two of them have Frontier.com for the domain. In one of the frontier emails for about the last week, when I try to send an email I get this error message:

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[50.52.3.89]>: Client host rejected: [email protected] exceeded hourly recipients threshold..

Occasionally I have simply saved the draft and have come back 3-4 minutes later, opened the draft up and hit send and it sends then for some reason, but not all the time.

Incredibly frustrating and a time vacuum.

Any ideas?

First of all, I have Thunderbird on three computers and this issue is occurring only on one of them. In my office computer Thunderbird program I have 9 email addresses. Two of them have Frontier.com for the domain. In one of the frontier emails for about the last week, when I try to send an email I get this error message: 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[50.52.3.89]>: Client host rejected: [email protected] exceeded hourly recipients threshold.. Occasionally I have simply saved the draft and have come back 3-4 minutes later, opened the draft up and hit send and it sends then for some reason, but not all the time. Incredibly frustrating and a time vacuum. Any ideas?

All Replies (2)

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All I can do is guess.

Starting with asking you. What is the hourly limit on sent mails from Frontier? The error says you have exceeded it. Have you?

BTW one email with 50 recipients will count as 50 emails. The recipient count is almost universally used to count toward limits.

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I do not know what the hourly limit is but I know for sure I am not exceeding it. I probably send no more than 10 emails from that address in any given hour. I never send to multiple addresses from that address. I have Thunderbird on another of my computers and it works fine. I have compared the settings and as near as I can tell they are identical. Another anomaly, some mornings I get to the office and the first one or two emails from the problem email address send fine, then no more. Several times, I "saved" them as drafts and came back later and they went out fine but this is not even consistent. It is so inconsistent that I cannot find a pattern.


Thanks!