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How to correct thunderbird error unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox

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christ1 besvarat
lwikle2
lwikle2

Good morning. We have McAfee Ultimate with email scam protection. Our "att.net" email was hack 2 weeks ago. We have changed "att.net" passwords. We began to again receive emails. on 6/14/26 we began receiving this message when trying to down load emails - "unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox" We deleted emails found in the McAfee Alert mail box. We deleted the "att.net" email from McAfee and then reconnected it. we have gmail accounts and deleted trash. any thoughts for how to correct will be appreciated. jimw

Good morning. We have McAfee Ultimate with email scam protection. Our "att.net" email was hack 2 weeks ago. We have changed "att.net" passwords. We began to again receive emails. on 6/14/26 we began receiving this message when trying to down load emails - "unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox" We deleted emails found in the McAfee Alert mail box. We deleted the "att.net" email from McAfee and then reconnected it. we have gmail accounts and deleted trash. any thoughts for how to correct will be appreciated. jimw

Alla svar (1)

christ1
christ1
  • Top 25 Contributor
  • Moderator

The short answer is - get rid of McAfee altogether, and just stick with Microsoft Defender. McAfee has been problematic in connection with Thunderbird in the past, and it seems it still is. Alternatively, create an exception in McAfee for the Thunderbird profile folder, so that it's real-time scanner will not scan the profile. https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_how-to-find-your-profile

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