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<title>PHPMailer FAQ</title>
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<h2>PHPMailer-Lite FAQ</h2>
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<li><b style="background-color: #FFFF00">Q:</b> <b>I am concerned that using include files will take up too much
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processing time on my computer. How can I make it run faster?</b><br />
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<b style="background-color: #FFFF00">A:</b> PHP by itself is very fast. Much faster than ASP or JSP running on
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the same type of server. This is because it has very little overhead compared
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to its competitors and it pre-compiles all of
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its code before it runs each script (in PHP4). However, all of
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this compiling and re-compiling can take up a lot of valuable
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computer resources. However, there are programs out there that compile
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PHP code and store it in memory (or on mmaped files) to reduce the
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processing immensely. Two of these: <a href="http://apc.communityconnect.com">APC
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(Alternative PHP Cache)</a> and <a href="http://bwcache.bware.it/index.htm">Afterburner</a>
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(<a href="http://www.mm4.de/php4win/mod_php4_win32/">Win32 download</a>)
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are excellent free tools that do just this. If you have the money
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you might also try <a href="http://www.zend.com">Zend Cache</a>, it is
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even faster than the open source varieties. All of these tools make your
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scripts run faster while also reducing the load on your server. I have tried
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them myself and they are quite stable too.<br /><br /></li>
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<li><b style="background-color: #FFFF00">Q:</b> <b>What mailer gives me the best performance?</b><br />
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<b style="background-color: #FFFF00">A:</b> On a single machine the <b>Sendmail (or Qmail)</b> is fastest overall.
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Next fastest is mail() to give you the best performance. Both do not have the overhead of SMTP.
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If you have you have your mail server on a another machine then
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SMTP is your only option, but you do get the benefit of redundant mail servers.<br />
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If you are running a mailing list with thousands of names, the fastest mailers in order are: SMTP, sendmail (or Qmail), mail().<br>
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* note: if you need to use SMTP, get a copy of PHPMailer ... this is
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PHPMailer-Lite and does not support SMTP.<br /><br /></li>
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<li><b style="background-color: #FFFF00">Q:</b> <b>When I try to attach a file with on my server I get a
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"Could not find {file} on filesystem error". Why is this?</b><br />
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<b style="background-color: #FFFF00">A:</b> If you are using a Unix machine this is probably because the user
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running your web server does not have read access to the directory in question. If you are using Windows,
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then the problem probably is that you have used single backslashes to denote directories (\).
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A single backslash has a special meaning to PHP so these are not
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valid. Instead use double backslashes ("\\") or a single forward
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slash ("/").<br /><br /></li>
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