Request action not taken. The receiving email server could not check the email address and there is an incorrect email address in the recipients line.
- Trying to send through a specific ISP SMTP server and yet you are not connected to the internet through that ISP.
- Receiving email server not able to verify the email address.
Step 1: Ensure The Validity Of Email Address
Check to ensure all the email addresses you are sending to are correct and no misspelled.