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copied!<ol> <li><p>Safe mode is deprecated as of php 5.3 and removed in php 5.4, so if your install is relatively recent, it's a moot point: <a href="http://php.net/manual/en/ini.sect.safe-mode.php#ini.safe-mode" rel="nofollow">http://php.net/manual/en/ini.sect.safe-mode.php#ini.safe-mode</a></p></li> <li><p>Doing a set_time_limit() will reset the counter, so as long as your code reaches the set_time_limit() call in less time than the limit was set previously (e.g. gets there in 29 seconds, leaving 1 second on clock), the code will reset the timer and get another 30 seconds. However, since you don't want your code to be racy, you should simply disable the time limit entirely.</p></li> <li><p>Personally, I wouldn't dump out one email every 8 seconds. I'd blast out the 500 we're allowed, then have a scheduled job to fire up the script once an hour and resume from where the blast left off. This will make things be a bit bursty for the mail server, but potentially more efficient in the long run, as it could batch together emails for the same recipient domains. e.g. all @aol.com mails in the group of 500 can go together, rather than forcing the server to connect to aol multiple times to deliver individual mails.</p></li> </ol> <p>As well, if you're batching like this, a server failure will only be 'bad' during the few seconds when the script's actually running and building emails. The rest of the time the PHP script won't even be running, and it'll be up to the smtp server to do its thing.</p>

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