An update of Windows 10 this week caused blind copies to send e-mail address of recipients in the list and I don't know how to solve this problem.

The update has caused a problem with sending emails which I solved it with help, but now I can't send to several people without all of the addresses being shown as well as their address book names, even when I use the BCC field.

It's ahotmail/live/outlook.com/msn account? There were reports a few weeks that BCC was pleased supported if the account is accessible thanks to a 3rd - party such TB program, but it still worked if the account is accessible via webmail. I think that MS has been alerted to the issue, but I do not know if it has been resolved.

https://support.Mozilla.org/en-us/questions/1134989

Tags: Thunderbird

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