Versions: WordPress: 6.7.1 WordPress MS: No PHP: 8.2.25 WP Mail SMTP: 4.2.0
Params: Mailer: smtp Constants: No ErrorInfo: The following From address failed: assureng(at)gmail.com : MAIL FROM command failed,Sender domain is not valid. ,554,5.9.2SMTP server error: MAIL FROM command failed Detail: Sender domain is not valid. SMTP code: 554 Additional SMTP info: 5.9.2SMTP server error: MAIL FROM command failed Detail: Sender domain is not valid. SMTP code: 554 Additional SMTP info: 5.9.2 Host: smtp-pulse(dot)com Port: 587 SMTPSecure:
Please note that most email providers will only let you send emails from domains and email addresses that they are authorized to send email for. For a Gmail address, that’s only Google.
I’m not familiar with SendPulse, but I expect that you will need to add your own domain name to their platform, and then send emails using addresses like [email protected].
Gmail especially is quite strictly tuned so sending email from a Gmail address from any other server will not work, because Gmail hasn’t authorized your mail server to send email on their behalf.