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Is it possible to change airports when using China's on-arrival transit visa scheme? http://codebetter.com/blogs/peter.van.ooijen/ pvanooijen That's beyond the scope of this code. Register Lost Password? The server response was: 5.7.1 Unable to relay for [email protected] Feb 25, 2006 03:53 AM|unixpeter|LINK need mail sender username and password,and must logon to my email corporation? Check This Out

Reply unixpeter None 0 Points 27 Posts Re: Mailbox unavailable. It is indeed changing, from totally insecure to better secured. The server response was: 5.7.1 Unable to relay Error up vote 11 down vote favorite 5 I knw this question may marked duplicate but i have not yet found the solution I have complete control over the server where both my website and the smtp server are located. http://stackoverflow.com/questions/15717743/mailbox-unavailable-the-server-response-was-5-7-1-unable-to-relay-error

How to block Hot Network Questions in the sidebar of Stack Exchange network? it highlight the error at mailClient.Send(mailMessage) did i got confuguration error ? When i searched i found that godaddy server dont allows mail to be sent to an untrusted server. The server response was: 5.7.1 Unable to relay for (email address) Nov 03, 2006 09:52 PM|mhickson|LINK In addition to the excellent advice already offered, I can't recommend enough (if you haven't

The server response was: 5.7.1 Unable to relay for (email message) what could be the different reasons? Either the From or the To address need to belong to the domain ([email protected] or [email protected]). In IIS6 there is "SMTP Virtual Server" but in IIS& it is not? –Vinod T. abdu I have done all the things listed above, but it is still not working .i got same error PavelK As for so many: It solved my problem.

The server response was 5.7.1 Unable to relay for (email) Thread: Error: Mailbox unavailable. The site is deployed on IIS7, Windows 2008 server. The server response was: Authentication is required for relay1Mailbox unavailable. http://stackoverflow.com/questions/6249100/iis-smtp-the-server-response-was-5-7-1-unable-to-relay-for-outgoing-address Yahoo also might be blocking due to the from address is not on their network and they are validating before receiving the message.

Help, my office wants infinite branch merges as policy; what other options do we have? I have used this script/code forsendingemails: