Sendmail Troubles

For some time I have been accessing sendmail by opening a stream to it with popen(), writing to it with fwrite(), and then closing it with pclose(). The other day, however, I discovered that if I group the sendmail access functions inside too many code segments ( { }s: ifs, whiles, anything ), the e-mail does _not_ go through and the following message is printed (I'm guessing) by sendmail: Failed to send message to any users I was referred to the mail() function by someone on #php, but to my surprise, this function printed the exact same error as my previous methods for sending e-mail. In the end I resorted to writing a bash script to open sendmail and redirect the mail data. This also only works using ``s though, popen, fwrite, and pclose produce (again) the same error as my two previous attempts. Any ideas? I'm running PHP 3.0.6 on SunOS 5.7 Generic_106541-11 sun4u sparc SUNW,Ultra-250. Toby McNulty Xorsis Software Software Development and Web Hosting services mailto:toby@xorsis.com http://www.xorsis.com