Repeated sendining email failures
Error occurred message when attempting to send email.
This has been occurring more and more frequently over the last few months.
Screen shot attached. - This email was sent just fine when attempted on isp website.
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I suggest you contact your mail provider and ask them why they are blacklisting you.
The attempt to send using Thunderbird resulted in failure (see attached screenshot) I went to providers website where the email was sent with NO Problem.
The issue seems to be with Thunderbird...
Perhaps I should try deleting and re-installing Thunderbird....!!! ???