PHP Script freezes after Mail()

Question

PHP script freezes after the mail() command when run through a webpage, but runs fine on SSH.

Page just keeps loading forever, nothing executes after the mail() command, however, the mail() command does work and sends an email.

What could the problem be?

Answer 1

This should be a comment, but its a bit long.

You've not provided nearly enough information here.

It has been suggested that we need to see the code - if your description is accurate then we don't, however given the quality of information supplied the predicate is very dubious. What happens when you run something like:

 <?php
 print "started<br />
";
 while (ob_get_level()) ob_flush();
 flush();

 $result=mail('youruser@localhost', 'test', 'test');
 print "result=" . var_export($result, true);
 exit;

What do the access and error logs show for the script?

What does your MTA logs show?

What is your MTA?

What OS is this running on?

but runs fine on SSH

Does your CLI SAPI use the same php.ini files as the web server?

If not what are the respective configurations?

Are you running the CLI as the webserver uid?

(hint - that's 8 questions you need to answer before anyone can make an informed guess as to what's happenning here)