outlook 2007 no problem receiving email but problem sending

[Charlie]

I have no problem sending and receiving emails when connected at work but
from home, I can receive new messages but there is a problem sending. I get
the message Sending reported error 0x80042109. Outlook cannot connect to
your outgoing (SMTP) e-mail server. If you continue receiving this message
contact your server administrator or ISP.

Any ideas please.
Thanks, Charlie

 

[Roady [MVP]]

Have you verified with your corporate mail admin already that the settings
have been correct for usage outside of the company network and if this is
indeed fully supported by your corporation?

If so, you probably have overlooked the SMTP authentication option.
See http://www.msoutlook.info/question/36

 

[VanguardLH]

I have no problem sending and receiving emails when connected at work but
from home, I can receive new messages but there is a problem sending. I get
the message Sending reported error 0x80042109. Outlook cannot connect to
your outgoing (SMTP) e-mail server. If you continue receiving this message
contact your server administrator or ISP.

Any ideas please.
Thanks, Charlie

How do you know that your company's SMTP mail host is accessible from
outside their network?