I've sent multi-megabyte files with Net::SMTP--it does work. There are a couple of places you can hit a problem:

The SMTP protocol does put a limit on line length. Lines generally shouldn't exceed 255 characters. (Don't have the standard handy. It might be as high as 1024, but I wouldn't go that high. If your lines are longer, use an encoding to make them shorter. (Quoted-printable's good for this)

Mail is not a binary protocol. Transmitting characters outside the ASCII printable range is a dangerous and unsafe thing. If you have to go in excess of ASCII 127, or below ASCII 32, encode the data. BASE-64 or uuencoding works reasonably well here, or quoted-printable if its only a few characters.

Lines can't start with a period, though Net::SMTP takes care of this, IIRC. That might be your problem. (Once again, MIME encode. Or double-up the period)

In reply to Re: Net::SMTP 8kB message size limit? by Elian
in thread Net::SMTP 8kB message size limit? by jjhorner

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.