Could be there is nothing weird about that. Most SMTP servers are configured to accept mail to the local domain from anywhere and to send mail only from the local domain. This prevents some unauthorised machine (eg outside your local network) from using your mail server to spam mail to the world in general.
If your "From" address is somewhere inside your network and your "To" address is outside then the mail server should refuse to accept mail to the "To" address without authentication, while it may be happy to accept any message to the "From" address since that is a local delivery.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
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<small> <strike> <strong>
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<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
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horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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