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I tried to send a large 80 MB file in Thunderbird and it won't stop trying to send it and I can't delete it.

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I tried to send a large 80 MB file in Thunderbird and it won't stop trying to send it and I can't delete it. Now I am unable to even send an email. How do I stop Thunderbird from trying to send the large file?

I tried to send a large 80 MB file in Thunderbird and it won't stop trying to send it and I can't delete it. Now I am unable to even send an email. How do I stop Thunderbird from trying to send the large file?

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have you looked in the outbox for the mail to delete?