... or, escape the sigils: 

print MAIL << "EOF";
To: joe\@here.com
From: smith\@here.com
...
EOF

[download]

or, use single quotes around the EOF: 

print MAIL << 'EOF';
To: joe@here.com
From: smith@here.com
...
EOF

[download]

In reply to Re^2: close statement issue by almut
in thread close statement issue by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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