#28914 [NEW]: Mail() hangs when sending large amounts of email

From: bens at effortlessis dot com Operating system: Red Hat FC1 PHP version: 4.3.7 PHP Bug Type: Mail related Bug description: Mail() hangs when sending large amounts of email Description: ------------ When used repeatedly, in a loop, mail() will often hang causing the script and/or browser to timeout. Sometimes the script will continue to execute after the browser times out, causing all sorts of grief. I've tested this on numerous (RedHat 7.x through RH FC1) servers, and have seen the same issue since at least PHP 4.2.x. (Just crossed my mind to report this as a bug!) Reproduce code: --------------- <? set_time_limit(0); $header="From: mlist@domain.com"; $sql="SELECT email FROM list ORDER BY email ASC"; if ($res=pg_exec($dbconn, $sql)) while ($row=@pg_fetch_array($res)) { echo $row['email']."<BR>\n"; mail($row['email'], 'Mailing List News', $msg, $header); } ?> Expected result: ---------------- user@domain.com user@domain.com user@domain.com ... 10,000 times. Actual result: -------------- user@domain.com user@domain.com user@domain.com ... typically less than 100 times, and then browser times out. -- Edit bug report at http://bugs.php.net/?id=28914&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28914&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28914&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=28914&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=28914&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=28914&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=28914&r=needscript Try newer version: http://bugs.php.net/fix.php?id=28914&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=28914&r=support Expected behavior: http://bugs.php.net/fix.php?id=28914&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=28914&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=28914&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=28914&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28914&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=28914&r=dst IIS Stability: http://bugs.php.net/fix.php?id=28914&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=28914&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=28914&r=float