in message
Outlook 2003, account type? Sending errors says sending reported
error
(0x8004210B): The operation timed out waiting for a response from
the sending
(STMP) server. If you continue to receive this message contact your
server
administrator or internet service provider.
Do NOT describe an error. Copy it! You should munge out a username,
if shown, for privacy concerns. Go into the Progress Dialog and copy
the exact error message displayed. It doesn't just say an error code.
Are you trying to access the same mail server at home that you can
successfully connect to at work? Does your workplace allow you to
connect to their mail server when NOT on their network? That is, it
is very likely that an employer will not allow off-domain access to
their mail server for sending through it to prevent abuse of their
resources. Configure the e-mail account within Outlook to
authenticate to their server; however, it is likely that you need to
access their mail host through a VPN to secure the content of your
company-related e-mails, to authenticate you have permission to use
their mail host, or may even not provide off-domain access at all and
require you to use a webmail interface to their mail host, like
Outlook Web Access through a web browser.
You'll need to discuss accessing your company's mail host with your
company's mail admin or IT department.