Hi All,
  I'm the past I've used a very simple bit of code to try and find out where sendmail is installed on a users server. 
if (-e "/usr/bin/sendmail") {
    $sendmail = "/usr/bin/sendmail";
}#if
if (-e "/usr/sbin/sendmail") {
    $sendmail = "/usr/sbin/sendmail";
}#if
if (-e "/usr/lib/sendmail") {
    $sendmail = "/usr/lib/sendmail";
}#if
if (-e "/var/qmail/bin/qmail-inject") {
    $sendmail = "/var/qmail/bin/qmail-inject";
}#if

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As you can see it simple tests for files in known places, assuming if they have qmail installed then they are using it over sendmail.
  As you've probably guessed, although this works it often breaks. I'd like to replace this code with something that actually tests the binaries.
What is the best way of doing this. At first I thought:- 
my $return = `/usr/lib/sendmail --help`;

[download]
But sendmail doesn't seem to have a --help, and this would only test the binary is there, and not that it's actually working.
  Does anyone know the best way to do this? Is the only way to actually try and send a mail and see if the result is 'EX_OK'. 
if ( system( '/usr/lib/sendmail -t ...' ) eq 'EX_OK' ) {
    ...
}#if

[download]
Is there a safe way to test and get 'EX_OK' without actually sending out mail?


Lyle

Update: Maybe 'sendmail -bv to:test@test.com'?
Update2: I'm currently thinking:- 
unless ( system( '/usr/lib/sendmail -bv to:test@test.com' ) ) {
    ### OK
}#unless

[download]

In reply to Searching for working Sendmail by cosmicperl

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