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Draft in Thunderbird appear as sent in Gmail

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Hi there,

This one almost gave me a heart attack, naturally. It's pretty simple to reproduce:

1. Start a new reply to an existing email from someone. 2. Write for a while, stop. Thunderbird will save the message by uploading it to the IMAP server. 3. Open Gmail with the web or mobile app. The message will appear in the reply thread, without a "draft" label, as if it was sent to the recipient. 4. Edit the email again. Send. 5. Thunderbird will delete previous version. This is visible in the Gmail web client as "X deleted messages in this conversation." label and that's how I discovered it.

The recipient _appears_ to only see the latest version, but that's still kinda scary because it seemed like the draft was sent without the user clicking "Send".

Thanks!

Hi there, This one almost gave me a heart attack, naturally. It's pretty simple to reproduce: 1. Start a new reply to an existing email from someone. 2. Write for a while, stop. Thunderbird will save the message by uploading it to the IMAP server. 3. Open Gmail with the web or mobile app. The message will appear in the reply thread, without a "draft" label, as if it was sent to the recipient. 4. Edit the email again. Send. 5. Thunderbird will delete previous version. This is visible in the Gmail web client as "X deleted messages in this conversation." label and that's how I discovered it. The recipient _appears_ to only see the latest version, but that's still kinda scary because it seemed like the draft was sent without the user clicking "Send". Thanks!

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