914,
An email message doesn't retain the IP address of the router's that it was routed through - only the MTAs. There is no guarantee of this since any MTA can strip those headers (that's how remailers work).

While this would work in a script that gets the IP before sending the email- it adds several new security concerns. What happens if nathanvit forgets to shut off the cronjob before going on vacation. He isn't around to monitor his email and his mailbox fills up - where does the undeliverable go?

This is just plain bad juju - I don't like this one bit, I do not like it Sam I am.

L~R

In reply to Re: Re: Re: ip and router by Limbic~Region
in thread ip and router by nathanvit

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.