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suddenly can not send email, I get error message saying: An error occurred while sending mail. The mail server responded: Authentication is required before se

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thunderbird worked perfectly on 9/3. This morning suddenly I cannot send email. The message is: An error occurred while sending mail. The mail server responded: Authentication is required before sending [R0107005]. Please verify that your email address is correct in your Mail preferences and try again.

I made no changes between 9/3 and 9/4

any help appreciated, have been using Thunderbird for many years.

Jerry

thunderbird worked perfectly on 9/3. This morning suddenly I cannot send email. The message is: An error occurred while sending mail. The mail server responded: Authentication is required before sending [R0107005]. Please verify that your email address is correct in your Mail preferences and try again. I made no changes between 9/3 and 9/4 any help appreciated, have been using Thunderbird for many years. Jerry

Chosen solution

problem solved. an update thunderbird message showed up, did update and now works. WOW!

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What exact version of Thunderbird and what OS version are you using?

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Thunderbird is 24.6.0

Windows OS

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Chosen Solution

problem solved. an update thunderbird message showed up, did update and now works. WOW!