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Replies to emails with reply-to headers are not threaded

I noticed that when replying to messages that have a reply-to header, my own message is not included in the thread with the first message. There is, however, a small "reply" icon next to the email in the list. Is there a setting I need to toggle, or should I report a bug?

I noticed that when replying to messages that have a reply-to header, my own message is not included in the thread with the first message. There is, however, a small "reply" icon next to the email in the list. Is there a setting I need to toggle, or should I report a bug?

Chosen solution

Is it a bug? Is it a bug in Thunderbird?

If you are using a gmail imap account then Google do not consider it a bug and as it is their IMAP implementation that has the quirk there is nothing to do but live with it..

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Chosen Solution

Is it a bug? Is it a bug in Thunderbird?

If you are using a gmail imap account then Google do not consider it a bug and as it is their IMAP implementation that has the quirk there is nothing to do but live with it..

Matt said

Is it a bug? Is it a bug in Thunderbird? If you are using a gmail imap account then Google do not consider it a bug and as it is their IMAP implementation that has the quirk there is nothing to do but live with it..

Ah, I didn't know that was up to the server. Thank you!

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