large 100MB plus attachment won't send & crashes program

I have a Dell Inspiron Home XP Edition. I tried to send
off a large email with over 80 digital pictures. It won't
send to completion. Everytime I turn on the program it
tries in vain to send itself; this large email. It can't
do it; then I get an error dialog box; then I get
a "program not responding" dialog box.

I try to delete the email in vain; the program won't let
me select it. It freezes up first. I called up Dell and
we uninstalled Outlook and reinstalled it, but this
didn't change anything either.

The message could not be sent because the server rejected
the sender's e-mail
address. The sender's e-mail address
was '. Subject
'Republican National Convention Protests_Aug 30, 2004',
Account:
'timeless6_verizon_mail', Server: 'outgoing.verizon.net',
Protocol: SMTP,
Server Response: '421 out010.verizon.net Lost connection
to [68.161.39.177]',
Port: 25, Secure(SSL): No, Server Error: 421, Error
Number: 0x800CCC78


There was a problem logging onto your mail server. Your
Password was rejected.
Account: 'timeless6_verizon_mail',
Server: 'incoming.verizon.net', Protocol:
POP3, Server Response: '-ERR a password MUST be entered',
Port: 110,
Secure(SSL): No, Server Error: 0x800CCC90, Error Number:
0x800CCC92