SOLVED Can't send emails from the same server if MS Exchange is available

Futureen

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Apr 8, 2020
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Are you sending email from the same domain that you are sending it to? I.e. the same domain is added to local (cPanel) email service and remote (Microsoft Exchange Server) mail service and you are attempting to send an email from that domain from local mailbox to remote one.

If that is the case, that is not possible. In case you have "Local Mail Exchanger" set up for the domain in "Email Routing" menu in cPanel, cPanel will always look for domain mailboxes locally and will not be able to send them to remote location.

And even if you change it to "Remote Mail Exchanger" for that domain, you will not be able to use cPanel to send emails from that domain.

More information on email routing and how it works may be found here: Email Routing | cPanel & WHM Documentation
 
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Diego Piquero

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Jan 13, 2022
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If he has the same domain for cpanel account and the exchange enviroment, he can make redirects to the @onmicrosoft.com, if that's not the case he has to login into the cpanel account afected and in the mail block, look for email routing, now he has to select the domain which need to have external routing and mail should start getting into the exchange server.
 

psytanium

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Jun 6, 2014
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Are you sending email from the same domain that you are sending it to? I.e. the same domain is added to local (cPanel) email service and remote (Microsoft Exchange Server) mail service and you are attempting to send an email from that domain from local mailbox to remote one.

If that is the case, that is not possible. In case you have "Local Mail Exchanger" set up for the domain in "Email Routing" menu in cPanel, cPanel will always look for domain mailboxes locally and will not be able to send them to remote location.

And even if you change it to "Remote Mail Exchanger" for that domain, you will not be able to use cPanel to send emails from that domain.

More information on email routing and how it works may be found here: Email Routing | cPanel & WHM Documentation
I have set the email routing to Automatically Detect Configuration, apparently its working fine now.

Thank you.
 
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