[TEMPFAIL] destination not valid within DNS

[B_Hodge]

I'm running Windows Xp as my operating system. The problem is that whenever i try to send any email through my outlook, it shows an error message stating "450 [TEMPFAIL] destination not valid within DNS" on my desktop screen. Whereas i'm able to send emaild from my Gmail, it works absolutely fine on my pc. Can any body tell me that why i'm unabel to send any email through my Outlook? Does any body knows about this issue? Kindly help me out to get rid of the above issue. Any kind of help on the above issue would be appreciated.

[Jackson2]

I think for that you need to contact your ISP provider and tyr to make sure that you are using the right SMTP server for your outbound mail and try to set the settings according to their requirements.

[johnson22]

You will receive such error only if you are having any server issue. Your SMTP server tries to inform you that the address to which the email you are trying to send is not valid.

[Trio]

Try to follow the below steps mention.

1. You need to click on your Tools menu, and then click on Options.
2. Then click on the Other tab.
3. Then you need to click on the Advanced Options button.
4. Now, you need to click in order to select the Enable mail logging (troubleshooting) check box.
5. Then click on OK in order to save the setting, and then return to the main Options screen.
6. Then click on Ok tab.
7. Now you need to quit and restart your Outlook.

If you want, then you can check out the following link.