Strange characters show in sent emails.Recipients complain, I see this in their responses. This is since Thunderbird 60.3 on W10
Using Unicode-UTF8 as the default. This is a new problem. Oddly, it doesn't appear on *all* recipients' email clients. Some with Outlook yes, some with Outlook, no. One recipient on a Windows 10 machine using Yahoo mail sees the strange character artifacts. Lots of upper case A characters, others.
Chosen solution
Verizon, AOL, ATT, Rogers, and possibly other ISPs, all use the Yahoo email infrastructure. The service or email client used by the recipient is probably not important - it depends on if the sender is sending through a Yahoo-type smtp server (if in fact we are talking about the same problem).
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Are these messages being sent through ATT or Yahoo accounts?
https://support.mozilla.org/en-US/questions/1234760#answer-1157663
No. The messages are being sent through a Spectrum (Charter) account in NYC.
The messages are received by recipients who read them who have Outlook or Yahoo email clients. One uses Yahoo mail and reads it via Outlook. None of the recipients that I know of who see the artifacts are on AT&T accounts. Verizon, Comcast, and Spectrum and Verizon Wireless and the services being used.
It may be worthy of note that the problem does not appear on all recipients' accounts.
To my gmail account (one I almost never use, it's there merely for newsletters and such) I've sent a series of emails. The gmail account is completely separate and apart from Thunderbird. Some have the problem, some don't. The problem is intermittent.
Chosen Solution
Verizon, AOL, ATT, Rogers, and possibly other ISPs, all use the Yahoo email infrastructure. The service or email client used by the recipient is probably not important - it depends on if the sender is sending through a Yahoo-type smtp server (if in fact we are talking about the same problem).
sfhowes said
Are these messages being sent through ATT or Yahoo accounts? https://support.mozilla.org/en-US/questions/1234760#answer-1157663
THANK YOU! That provided the answer. All is good in outboud email now. Greatly appreciated.