Problem to send message

Discussion in 'Mozilla Thunderbird' started by HuaMinChen, Dec 12, 2018.

  1. HuaMinChen

    HuaMinChen New Email

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    Hi,
    Sorry, how to identify reason of below issue?
     


  2. Victor*

    Victor* New Email

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    Dec 18, 2019
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    I found that when I get the ( 5.7.1 [R8] Authentication Failed ) message when trying to send, you have the Authentication of the smtp server set wrong.
    For me, setting the smtp server ( Password, Transmitted Insecurely ) under Server Settings fixes problem
     

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