Fail to send mail from web site

During the configuration of the Post SMTP plugin, after entering the secret codes of the application, I click on the “connect to Microsoft office 365 button and wordpress goes into a critical error.

When I try to undergo a connection test from your plugin, this is the result:

✅ 🔒 Port 587 can be used for SMTP to in-v3.mailjet.com.
❌ No outbound route between this site and the Internet on Port 0.
✅ 🔒 Port 443 can be used with the Mandrill API.
✅ 🔒 Port 443 can be used with the Office365 API.
✅ 🔒 Port 587 can be used for SMTP to smtp.office365.com.
✅ 🔒 Port 587 can be used for SMTP to smtp-relay.brevo.com.
✅ 🔒 Port 587 can be used for SMTP to smtp.postmarkapp.com.
✅ 🔒 Port 443 can be used with the Mailgun API.
✅ 🔒 Port 443 can be used with the SendGrid API.
✅ Port 25 can be used for SMTP to smtp.office365.com.
❌ No outbound route between this site and the Internet on Port 2525.
❌ No outbound route between this site and the Internet on Port 2525.
✅ 🔒 Port 587 can be used for SMTP to smtp.sparkpostmail.com. Warning: connected to 0.0 instead of sparkpostmail.com.
❌ Port 465 is open, but not to smtp.office365.com.

Is there any problem?

Thanks a lot

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