Prestashop owners can use either SMTP or PHP mail() function to send contact form emails, order confirmation emails and so forth.
Due to ease of use, some store owners prefer mail() over SMTP. Sometimes, this can conflict with server security settings and may result in errors.
“My Prestashop email does not work” is a common problem raised by store owners.
At Bobcares, we often resolve such email errors as part of our Technical Support Service for web hosting companies.