Reply-to in MIME Lite errors because of using strict [ => (fat comma) operator]

Question

I use MIME::Lite to send emails from my Perl script. I have use strict; in my header, since that's standard usage in all our scripts.

        my $msg = MIME::Lite->new(
            From => $from,
            To   => $to_str,
            Cc      => $cc_str,
            Reply-To    => $replyto,
            Subject => $tf_subject,
            Type    => 'multipart/mixed'
        );

I get the following error when I add Reply-To in this function to get the bounce back emails.

Bareword "Reply" not allowed while "strict subs" in use at

But I see in the documentation of MIME::Lite that Reply-To is the only way to get the bounce back emails.

Is there a way to accommodate both strict and Reply-To in the same script?

Answer 1

Put Reply-To in quotes. make it 'Reply-To'

my $msg = MIME::Lite->new(
  From => $from,
  To   => $to_str,
  Cc      => $cc_str,
  'Reply-To'    => $replyto,
  Subject => $tf_subject,
  Type    => 'multipart/mixed'
);

---

Explanation:

man perlop

The "=>" operator (sometimes pronounced "fat comma") is a synonym for the comma except that it causes a word on its left to be interpreted as a string if it begins with a letter or underscore and is composed only of letters, digits and underscores. This includes operands that might otherwise be interpreted as operators, constants, single number v-strings or function calls. If in doubt about this behavior, the left operand can be quoted explicitly.

Otherwise, the "=>" operator behaves exactly as the comma operator or list argument separator, according to context.