I am not sure I undestand your question.

First of all, you example does not work. Precisely for the reason you give: the @ in this case is interpreted as a list1 variable introducer. Use single quotes if you do not want variables to be interpolated in a string:

$x = 'jdoe@somewhere.com,bdoakes@nowhere.com';

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To create a list1 of two e-mail addreses from this, you can use split:
@addresses = split /,/, $x;

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1Or, to be exact, an array.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Dealing with '@' in Text Strings by choroba
in thread Dealing with '@' in Text Strings by Red_Dragon

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