Please turn on SMTP Authentication error

syedimtiaz

• May 09, 2019 05:30

Hi, I have migratted multiple account one server to another server successfully, But SMTP problem occuring from outlook and thunderbird. " An error occurred while sending mail. The mail server responded: Please turn on SMTP Authentication in your mail client. ([192.168.0.109]) [106.51.xxx.xxx]:58114 is not permitted to relay through this server without authentication.. Please check the message recipient "someusr@gmail.com" and try again. "
It happing with different domain same issue. Can you please anyone suggest me to get out from this is issue. Thanks you

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  dalem

  • May 09, 2019 12:17

  your clients do not have SMTP Authentication on Have them enable on their email client or in tweak settings mail check the box Allow users to relay mail if they use an IP address through which someone has validated an IMAP or POP3 login within the last hour (Pop-before-SMTP)

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  cPanelLauren

  • May 09, 2019 20:35

  @dalem is correct they aren't authenticating properly - what happens if you select "use the same settings as incoming server" under "my outgoing server (SMTP) requires authentication"

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  Joo Inter

  • September 28, 2019 16:23

  Hello, i am facing the same problem, when sending email through webmail. Can please anyone suggest me to get out from this is issue? Thank you, in advance

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  cPanelLauren

  • October 02, 2019 18:33

  Hello, i am facing the same problem, when sending email through webmail. Can please anyone suggest me to get out from this is issue? Thank you, in advance

  
  Do you get this for all accounts when sending through webmail? You might want to read the following:

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