Send test email failled : Invalid address: (From):`

Replies: 0

Hi there,

I set everything up to send emails via Google with Google workspace for massagecardiff.co.uk.
I set up the SPF, DKIM and DMARC, and all was working fine. No errors on test email

I set up the emails for another site after that one(thewellnesspro.co.uk), which is an addon site for this one (massagecardiff.co.uk) and set up the emails for that one as well, using the same Google Workspace account (as both sites belong to my daughter)
I went through the same process and all was working fine. No errors at all.

But now on the massagecardiff.co.uk site I am getting this error log:

Versions:
WordPress: 5.7.2
WordPress MS: No
PHP: 7.4.20
WP Mail SMTP: 2.9.0

Params:
Mailer: gmail
Constants: No
Client ID/Secret: Yes
Auth Code: Yes
Access Token: Yes

Server:
OpenSSL: OpenSSL 1.1.1k 25 Mar 2021
PHP.allow_url_fopen: Yes
PHP.stream_socket_client(): Yes
PHP.fsockopen(): Yes
PHP.curl_version(): 7.77.0

PHPMailer Debug:
Invalid address: (From):

I don’t know if I did something in the backend of the site, but I have checked over all the emails from all plugins to ensure they are sending using the same address. I have also checked “force from” (admin@massagecardiff.co.uk) and they are all fine. I have no “must use” plugins. Both sites pretty much have the same plugins installed with mostly the same settings

Any help would be much appreciated. Thank you