unable send mail.

[zeeshan ahmad]

sir, i have created my account in outlook for my one email account and my
account.
my problem is that i am recieving mail from all the mail server like
yahoomail, gmail, hotmail etc. but when i tried to send reply for the mail
recieved from these mail server. i recieved this ERROR..

The following recipient(s) cannot be reached:

'(e-mail address removed)' on 10/8/2008 10:33 AM
550 not local host yahoo.com, not a gateway
tell me the solution for this problem.

 

[Vince Averello]

What server are you using for outgoing mail?

 

[VanguardLH]

sir, i have created my account in outlook for my one email account and my
account.
my problem is that i am recieving mail from all the mail server like
yahoomail, gmail, hotmail etc. but when i tried to send reply for the mail
recieved from these mail server. i recieved this ERROR..

The following recipient(s) cannot be reached:

'(e-mail address removed)' on 10/8/2008 10:33 AM
550 not local host yahoo.com, not a gateway
tell me the solution for this problem.

Recieving e-mails using POP, IMAP, HTTP, or Exchange. Other than
Exchange, sending mail uses SMTP which is a different protocol. One
protocol working doesn't mean another will work.

My guess is that you are NOT on the same domain as the mail host to
which you are attempting to connect to send your outbound mails. That
is, you are off-domain and trying to use their resources for which they
have no idea if you are an authorized user to do so. In the e-mail
account you have defined in Outlook, enable authentication to their SMTP
mail host.