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To: field recipient is replaced with "Undisclosed Recipient" when forwarding or edting as new message with a Bcc

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  • Last reply by thomas8

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When I Forward an email to someone, or if I use "Edit as New Message", AND I include a Bcc: to myself, I carefully enter a name and address into the To: field, and hit "Send". (Let me emphasize: I have confirmed that there is a correct name and email address in the To: field. It is NOT blank.)

But when I receive my Bcc:, the name and address in the To: field has been replaced with "Undisclosed Recipients" -- as if the To: field had been blank. When I check the copy in my "Sent" box, it also appears as "Undisclosed Recipients". So I am unable to confirm that the message was sent to the address I had entered.

I have checked and my intended recipients apparently do not receive the email when this happens. So evidently the name and address in the To: field disappear when I hit "Send", and the program thinks I intended to send a message with only a Bcc: and no To: address.

I have not been able to confirm whether this bug occurs while writing a New email or a Reply. It might, I am not certain. But it definitely occurs when Forwarding and Editing as New Message.

Is anyone else experiencing this bug?

Is it a known bug?

While I'm at it: is there are way to make Thunderbird warn me if it thinks I am sending a message with a blank "To" field -- just as every other email client does by default?

[Using TB 78.5.1 on an iMac running Catalina 10.15.6]

When I Forward an email to someone, or if I use "Edit as New Message", AND I include a Bcc: to myself, I carefully enter a name and address into the To: field, and hit "Send". (Let me emphasize: I have confirmed that there is a correct name and email address in the To: field. It is NOT blank.) But when I receive my Bcc:, the name and address in the To: field has been replaced with "Undisclosed Recipients" -- as if the To: field had been blank. When I check the copy in my "Sent" box, it also appears as "Undisclosed Recipients". So I am unable to confirm that the message was sent to the address I had entered. I have checked and my intended recipients apparently do not receive the email when this happens. So evidently the name and address in the To: field disappear when I hit "Send", and the program thinks I intended to send a message with only a Bcc: and no To: address. I have not been able to confirm whether this bug occurs while writing a New email or a Reply. It might, I am not certain. But it definitely occurs when Forwarding and Editing as New Message. Is anyone else experiencing this bug? Is it a known bug? While I'm at it: is there are way to make Thunderbird warn me if it thinks I am sending a message with a blank "To" field -- just as every other email client does by default? [Using TB 78.5.1 on an iMac running Catalina 10.15.6]

Chosen solution

Hi Montrealer,

thank you for your friendly and detailed support request. You've been bitten by a cunning bug which we've just fixed: Bug 1674054. We'll uplift that to TB 78 soon.

Here's what happens: Unfortunately in the current version, only recipients which have been "pillified" (turned into proper recipient items with rectangular border) will be used at send time, and any plain text (non-pillified) recipients are discarded. Unfortunately, the Send button gets enabled as soon as there's one good pill (your auto-BCC).

It's easy to work around this bug once you know it: - Just press Enter, Tab, or type comma after any recipient which you add to the message - Alternatively, click into any focusable area of the message (e.g. message body) All of these methods will pillify your recipients, and the bug will not occur.

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Chosen Solution

Hi Montrealer,

thank you for your friendly and detailed support request. You've been bitten by a cunning bug which we've just fixed: Bug 1674054. We'll uplift that to TB 78 soon.

Here's what happens: Unfortunately in the current version, only recipients which have been "pillified" (turned into proper recipient items with rectangular border) will be used at send time, and any plain text (non-pillified) recipients are discarded. Unfortunately, the Send button gets enabled as soon as there's one good pill (your auto-BCC).

It's easy to work around this bug once you know it: - Just press Enter, Tab, or type comma after any recipient which you add to the message - Alternatively, click into any focusable area of the message (e.g. message body) All of these methods will pillify your recipients, and the bug will not occur.