Plain Text as ASCII No Longer Working?

[arandor]

I recently updated from TB v60 to v91.10, and my plain text messages that contain only 7-bit characters are now being sent as UTF-8. I have the pref `mail.label_ascii_only_mail_as_us_ascii` set to true, as I have for years, but it doesn't seem to have any effect.

I double checked the headers and they confirm the message only contains 7bit characters but it's using UTF-8:

Code: Select all

content-type text/plain; charset=UTF-8
content-transfer-encoding 7bit

I've tested it with multiple accounts and still get the same result.

Has something changed or should it send 7-bit only messages as ASCII when that pref is set to true?

Thanks

[tanstaafl]

I see the same thing with 91.10.0 . I think it changed when they removed the view menu to let you chose what encoding should be used to display the current message, and removed the ability to set what character set it should default to for sending and receiving in the "fonts & encoding" preferences.

https://superuser.com/questions/288571/ ... sing-a-new has a picture of the old fonts & encoding settings.

I did find a Charset Menu add-on at https://addons.thunderbird.net/en-us/th ... rset-menu/ but that appears to only restore the option to display a message using a character set encoding you select.

I found https://www.reddit.com/r/Thunderbird/co ... ions_gone/ where somebody who claimed to be a Thunderbird employee pointed to https://hsivonen.fi/no-encoding-menu/ as an explanation of why the text encoding were removed.

In 102.0BL7 they added a "Sending Format" section to tools -> preferences with four choices. The last choice is "Only Plain Text" which unfortunately still uses UTF-8 despite my setting mail.label_ascii_only_mail_as_us_ascii true.

Let me do some research. If I can't find a way to set what character set should be used when sending I'll file a bug report against 102.

[arandor]

Thanks for the help!