Can't send email to Gmail

Support and Discussion General Discussion
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1

Hi,
I have setup Cyberpanel around a month ago. Everything seems to be okay with the configurations. I get a 10/10 score on both Email Delivery Tester by CyberPanel and mail-tester.com. Things seem to be okay on mxtoolbox also. You may check the screenshots below. But still, the emails aren’t sending to Gmail. It returns an error whenever I try to send email to a gmail account.

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Screenshot_11524×356 17.5 KB

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Screenshot_21245×516 25.2 KB

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Screenshot_31578×582 27.2 KB

This is the error that I am receiving while sending email to Gmail:

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Screenshot_4706×450 12.5 KB

There seems to be a problem with SMTP Relay. Can you please tell me how I can fix this issue?
Looking forward to your reply.
Thanks in advance.

2

Is port 25 open? If it is not open, contact the server administrator.