SMTP issues.
Have tried POST SMTP, WP MAIL SMTP and other plugins. Office 365 email is sending and receiving internally & externally but I can’t configure the WordPress website to send to our office 365. I get errors saying all ports are closed or service unavailable. But I know port 25 is open as emails are following.
ERROR NOTES:
Unable to connect to smtp.office365.com:25 (Connection refused)
SMTP ERROR: Failed to connect to server: Connection refused (111)
I have tried support help with Office 365 to no avail & with our hosting asking them to remove firewalls.
Please help.