You're welcome.
About all I know about Dell computers is other people's opinions of them, so
I'll try to give an answer that applies to all types of computers. There
are
4 types of places the block could be; on your computer, on the earthlink.net
mail server, on the charter.net mail server, and on his computer. If it's
on a
server, you'll usually have to ask the company running the server to help,
since you usually can't adjust the settings yourself. However, it may be
worthwhile for you or him to log in to the server using webmail instead of
Windows Mail and check if webmail allows any such settings for your
account or his account only.
If it's on your computer, start by creating a way to access Windows Mail
directly instead of letting IE7 call it for you. On your desktop, double
click
on Computer, then C:, then Program Files, then scroll down the list to
Windows Mail, then double click on it, then find WinMail.exe if it's on the
list or WinMail otherwise, right click on it, click on Create Shortcut,
approve putting the shortcut on your desktop, then close the window
created above.
Now, start Windows Mail directly by double clicking on the WinMail.exe
or WinMail shortcut. Click on Tools, then Message Rules, then Mail.
Click on each rule on the list, if there are any, scrolling down if the list
is
long enough. If any of the rules delete messages from him, or from
the whole charter.net domain, remove that rule. After checking all the
rules, click on OK.
Click on Tools, then Junk E-mail Options, then Safe Senders. Add his
email address to the list, then click Apply. Click on Blocked Senders.
If his email address, or the whole charter.net domain, is on the list,
click on it, then Remove, then Apply. Click on OK.
If it's on his computer, the details of how to do a similar check depend
on which email program he's using. He should check for messages that
apply to outgoing mail (such rules not available in Windows Mail) going
to your email address or to any address in the earthlink.net domain.
Something else for him to check: Some email servers object to mail
sent to addresses with any spaces or any CAPITAL LETTERS in the
username. Have him change the address he is replying to to fit these
requirements, and then send you a short reply.
Also, have him try a short reply to you that avoids certain possible
causes for marking it spam: Any mention of an amount of money,
any mention of a product likely to be offered in spam, or the use of
a subject line in ALL CAPITAL LETTERS.