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postal smtp problem
I followed your youtube video and blog article on how to install postal smtp on ubuntu.
I did everything step-by-step but emails are not sending.
I attached below 2 screenshoots to see the error exactly.
Please help me understand why this problem occured, also I checked and port 25 is opened.
Hi friend, please check if port 25 ios opened in your VPS server.
what VPS company you are using?