SMTP Sender Not Working

Hello.

SMTP was working fine, but now it has stopped. The message never even hits our perimeter filter, so the form is not even attempting to be sent. Please advise ASAP

I have tested the email delivery using Google's and Microsoft's SMTP senders, but I was not able to reproduce the issue. The emails were successfully sent using the custom SMTP senders.

Please make sure that you use correct SMTP details and your server does not block our access attempts.