The From address is not one your mail service will send as. Every service requires you to prove you own the domain or the mailbox before it will send as it, which is exactly what stops anybody sending as you.
Verify the address with the service, or set From to one you have already verified with them.
Still stuck? Ask the developers who wrote it. We aim to reply within one business day.
Email Delivery
Send your site's email through a real mail service, and see what happened to every message.
From $19 a year · every feature · 30-day refund
![The Send a test screen of Email Delivery in WordPress admin. A red box reads It did not go. SMTP Error: Could not authenticate. Below, a panel headed What the mail server said, noting it is safe to paste into a support request, shows the full conversation with smtp.sendgrid.net, the sign-in lines replaced by [credentials hidden], ending in 535 Authentication failed: The provided authorization grant is invalid, expired, or revoked.](https://www.traslatability.com/wp-content/themes/traslatability/assets/screens/email-delivery-by-traslatability/01-test-transcript.webp?ver=1792684944)