I agree with some of the other replies that most people, if they're composing and sending email with perl, use SMTP so that it can work with any MTA (unless you already wanted to limit yourself to a certain MTA), so the MUA discussion is moot.
I don't think this is good advice. If you're going to use SMTP, you should also be willing to deal with all sorts of problems, like the MTA you're connecting to being down, (temporarely) refusing connection, or otherwise not willing to accept your mail right now. Which means you have to do build the "keep and retry" mechanism yourself.

I rather call /usr/lib/sendmail (whether that's from sendmail, or a drop-in replacement from another MTA) that will place my mail in the appropriate queue, then connect to port 25 and just pray my call gets accepted.

In reply to Re: Exim, for the love of Perl by Anonymous Monk
in thread Which MTA is best to use with Perl.... by digiryde

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.