Sender verify failed parallels plesk Tag

What causes “Sender verify failed” SMTP mail error, and how to resolve it in Parallels Plesk Postfix servers

by Visakh S | Oct 25, 2014 | Plesk, Technical Support

SMTP error from remote mail server after RCPT TO:<[email protected]>: host mx.server.com [xxx.xxx.xxx.xxx]: 550-Verification failed for <[email protected]> 550-The mail server could not deliver mail to [email protected]. The account ordomain may not exist,...

What causes “Sender verify failed” SMTP mail error, and how to resolve it in Parallels Plesk Postfix servers

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