How can I send an email from an alternate "from" address?

[Rouse Chamberlin Ltd]

I have several alternate email addresses that funnel back to me on Outlook.
How can I send an email so that the "from" line is from one of these
alternates?

 

[Roady [MVP]]

Which mail account type are you using?
Assuming POP3 see;
http://www.howto-outlook.com/faq/aliases.htm

 

[VanguardLH]

I have several alternate email addresses that funnel back to me on Outlook.
How can I send an email so that the "from" line is from one of these
alternates?

If you have multiple e-mail accounts defined in Outlook, use the
Accounts toolbar button while composing an e-mail to select one of them
if the default account is not to be used.