HI Guys , I got error below in configuring send mail task in SSIS. [Send Mail Task] Error: An error occurred with the following error message: "Mailbox unavailable. The server response was: Unknown user". please help me on this

Hi, It looks like you don't have relaying enabled on the mail server. Once you enable relaying, it should send the message. (Please change the Post type from "Discussion" to "Question".)Senior BI Consultant & PM @ Bicentrix If it is, Please dont forget to mark as answered or at least vote as helpful if the post helps you in any ways.

Assuming you are absolutely correct about the sender and recipient addresses (e.g. you did not mishandle it in an expression or parameters), the issue can also be on the SMTM server side, e.g. rules exist prohibiting sending emails from servers, or specific users that are not logged in, etc.Arthur My Blog

Assuming you are absolutely correct about the sender and recipient addresses (e.g. you did not mishandle it in an expression or parameters), the issue can also be on the SMTM server side, e.g. rules exist prohibiting sending emails from servers, or specific users that are not logged in, etc.Arthur My Blog