See the email will fail to deliver due to one or more of the following reasons:

1. You’re setting the from email to a none existent email.

2. You’re setting the from email to an email that the target never received an email from.

3. You’re setting the from email to an email of a domain that correctly implements DKIM, DMARC and SPF, currently only %4 of domains implement them properly.

So please try again keeping the above notes in mind and you should be able to get your email to land in the inbox.