[Delphine-dvlpt] Delivery failure to <natalia.p@tourbank.ru> ...

[Mail D. S. <pos...@zu...>]

When trying to deliver your message, the mail server at host=finita,from=zums.ac.ir encountered
problems with the following addresses:

For <nat...@to...>, ubad=9, Site (tourbank.ru/80.93.62.122) said: 550 User unknown (200)

For a more detailed explanation see http://netwinsite.com/surgemail/deliver_failed.htm