Done
SMTP Reverse DNS Mismatch OK - 123.redacted resolves to mail.kiltzone.com
Status Ok SMTP Valid Hostname OK - Reverse DNS is a valid Hostname
Status Ok SMTP Banner Check OK - Reverse DNS matches SMTP Banner
Status Ok SMTP TLS OK - Supports TLS.
Status Ok SMTP Connection Time 0.382 seconds - Good on Connection time
Try send an email to me now
Sent you and myself again, have not received at my end.
Post the email logs here https://SERVER_URL:8090/serverlogs/emaillogs
Did you check your VPS provider have opened port 25? Almost every provider block port 25 default to prevent spam. If not you need to open support ticket to request them open port 25.
See for vultr https://www.vultr.com/docs/what-ports-are-blocked/
I contacted them and they said they cannot unblock it till 30 days period passes which seems weird. What should be done to fix it then?
You just have to wait… Its way to reduce spammers most of VPS providers have similar system.
Vultr is great provider I run mail server on their network don’t have problem being black listed all time. If you need fast solution look some third party mail providers.
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