*Note:* It is worth noting that the mail() function is not suitable for
larger volumes of email in a loop. This function opens and closes an SMTP
socket for each email, which is not very efficient.
For the sending of large amounts of email, see the » PEAR::Mail, and »
PEAR::Mail_Queue packages.
Note:* The following RFCs may be useful: » RFC 1896, » RFC 2045, » RFC 2046,
» RFC 2047, » RFC 2048, » RFC 2049, and » RFC 2822.

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