Hi Team,
I have checked that with the server provider & they have open mail ports 25, 587 for sending email.
Below is the email error log I am getting.
Apr 18 10:06:06 hosted postfix/pickup[7275]: 8F4D0431E7: uid=0 from=
Apr 18 10:06:06 hosted postfix/cleanup[15610]: 8F4D0431E7: message-id=20190418100606.8F4D0431E7@mydomain.com
Apr 18 10:06:06 hosted opendkim[3003]: default._domainkey.mydomain.com: key data is not secure: opendkim is in group 0 which has multiple users (e.g., “sync”)
Apr 18 10:06:06 hosted opendkim[3003]: 8F4D0431E7: error loading key ‘default._domainkey.mydomain’
Apr 18 10:06:06 hosted postfix/cleanup[15610]: 8F4D0431E7: milter-reject: END-OF-MESSAGE from localhost[127.0.0.1]: 4.7.1 Service unavailable - try again later; from=root@mydomain to=root@mydomain
Previously I used cloudflare as DNS but not configured private nameservers & now DNS is also managed by Cyberpanel . Below is the DKIM entry as TXT record in dns setting.
TXT default._domainkey.mydomain.com 3600 v=DKIM1; k=rsa p=MIGfMA0GCSqGSIb3D…
Any help is appreciated & if you need login details let me know.
Best Regards.