Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Outgoing email character encoding

  • 3 replies
  • 1 has this problem
  • 19 views
  • Last reply by Stans

sganosis
sganosis
more options

Hello team, In our Greek company (ATTIKO METRO SA) we are using mozilla thunderbird as the default email client in windows PC Systems for many years .

We have applied the option of sending email with character encoding Greek (ISO-8859-7) and also the same encoding as default encoding for Incoming emails (if not defined at message header). (see attached image) In config editor these options are mailnews.send_default_charset and "mailnews.view_default_charset".

After update to version 91.x this option disappeared and now the character encoding for outgoing and incoming is UTF-8 and cannot change it. It is very critical for us to have this option again because all our emails have to be encoded in ISO-8859-7 according to our installations and policies.

Hello team, In our Greek company (ATTIKO METRO SA) we are using mozilla thunderbird as the default email client in windows PC Systems for many years . We have applied the option of '''sending email with character encoding Greek (ISO-8859-7)''' and also the same encoding as default encoding for Incoming emails (if not defined at message header). (see attached image) In config editor these options are '''mailnews.send_default_charset''' and "mailnews.view_default_charset". After update to version 91.x this option disappeared and now the character encoding for outgoing and incoming is UTF-8 and cannot change it. It is very critical for us to have this option again because all our emails have to be encoded in ISO-8859-7 according to our installations and policies.
Attached screenshots

All Replies (3)

Stans
Stans
more options

Is it your company's policy that emails be encoded in ISO-8859-7? See https://bugzilla.mozilla.org/show_bug.cgi?id=862292

sganosis
sganosis Question owner
more options

Yes. It is the policy. I know about UTF-8 but we have to use ISO-8859-7. Thank you

Stans
Stans
more options

If you go through the task that was filed in Bugzilla as linked to in my previous reply, you will see that those preferences were removed and going forward, Unicode will be the encoding of choice for outgoing and incoming mail. This change was made years ago and I doubt there are plans to restore or even maintain code for non-unicode encodinng. If changing company policy is not an option, I'm afraid you have no option but to revert to the version of Thunderbird that still offered non-unicode encoding options. That, of course, introduces the problem of security holes in unpatched unsupported old software.