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Thunderbird says that my account is over quota, but the Properties say that I'm only at 63% of quota.

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I can't save messages to Drafts and sent messages don't go to the Sent folder because Thunderbird gives an error message that the mail server is over quota. ("The current operation on 'Drafts' did not succeed. The mail server for account (...) responded: Over quota" However, I checked the properties for the email account (it's a group email account), and it says that we're only using 63% of the quota. How can we fix this? We can't delete too many messages because they have correspondences with research subjects that we need to save, and we shouldn't have to because we're not even at the quota.

I can't save messages to Drafts and sent messages don't go to the Sent folder because Thunderbird gives an error message that the mail server is over quota. ("The current operation on 'Drafts' did not succeed. The mail server for account (...) responded: Over quota" However, I checked the properties for the email account (it's a group email account), and it says that we're only using 63% of the quota. How can we fix this? We can't delete too many messages because they have correspondences with research subjects that we need to save, and we shouldn't have to because we're not even at the quota.

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This account is IMAP, correct?

Your provider may have more than one quota on your account.

Some providers use limits on:

  1. Storage - The total size of all messages and folders
  2. Messages - The number of messages and folders, and
  3. Transfer - The amount of email received, or sent, in any given period.

You may not be using all the storage capacity, but you may have exceeded a message number limit, or a monthly transfer limit.

Check with your provider to see the limits on your account. You may need to upgrade your account to get larger quotas.

TB-38.2 Win10-PC