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Hello, our mail provider began enforcing SMTP policies where the originating email sender must match that of the authenticated user email being used to send mail. Otherwise known as “From” field or ctladdr.
Its clear in the sendmail logs, the contact form 7 is using system defaults, is there any way to modify these fields?
For example:
sendmail[1919767]: 48IIN3q81919767: from=www-data,
sm-mta[1919768]: 48IIN38H1919768: from=www-data@web2.domain.com
sendmail[1919767]: 48IIN3q81919767: [email protected], ctladdr=www-data