Webpresence-Builder with SMTP-Auth and Config-Choice of an existing Mail-Account
Its not new, that all Scripts shull been send via SMTP-Auth! As on an workarround in moment, why webpresence builder works so as scripts works in the 70th, the sendmail function must been allow for the complete abonnement and this is a security hole! So this must been urgend resolved in the programation, that the client can change in webpresence builder to mode: send via SMTP and then select only one of the existing mail-accounts?!

We do not plan on introducing major changes to Web Presence Builder at the moment
—AK
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Chris Danks commented
Plesk team
I have came online to research this! It is ludicrousness that Plesk do not support SMTP authentication for sending of emails through web presence builder even in Plesk onyx which is branded around being the developers choice CP when such basic things are missing from its features!
very disappointing and resulting in us not purchasing any further Web presence builder licenses, for now those clients we will keep on CPanel with another product.
when you do decide to bring this product to the 21st century, please let me know.