Knowledgebase
Invalid HELO name (Email Authentication)
Posted by Bilawal Idrees on 09 June 2017 07:32 AM

Microsoft Outlook 2010 / 2013

From the Menu Bar, Click the "File" tab.
Click the Info tab on the left and select "Accounts Settings". Click "Account Settings".
Select your Email account then Click "Change".
Click "More settings".
Select "Outgoing Server" tab.
Select the box beside "My outgoing server (SMTP) requires authentication".
Select "Use same settings as my incoming email server".
Click "Ok".
Click "Next".
Click "Finish".


Microsoft Outlook 2007 and earlier

From the Menu Bar, Click "Tools" then Click "E-mail Accounts".
Select "View or change existing e-mail accounts" then Click "Next".
Select your Email account then Click "Change"
Click "More settings".
Select "Outgoing Server" tab.
Select the box beside "My outgoing server (SMTP) requires authentication".
Select "Use same settings as my incoming email server".
Click "Ok".
Click "Next".
Click "Finish".


Thunderbird

From the Menu Bar, Click "Tools", then "Account Settings".
This will bring up the Account Settings window where you can click on "Outgoing Server (SMTP)" at the bottom of the list in on the left side of the window.
Back in the middle of the window, select the appropriate outgoing server and click the "Edit" button.
Make sure "Authentication method" is set to "Normal password".
Click "OK" to close the SMTP edit window and again on the Account Settings window.
Mac Mail

From within Mac Mail

Click Mail > Preferences > Accounts
Near the bottom of the window, look for "Outgoing Mail Server (SMTP)", click the drop down arrow and select "Edit SMTP Server List..."
Click the "Advanced" button in the middle of the window and make sure Authentication is set to "Password".
Click "OK" to close the edit window

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