Thread:Project:Support desk/Internal Error - PEAR mail package is not installed

I followed the help guide at http://pear.php.net/manual/en/installation.checking.php pear list Installed packages, channel pear.php.net:

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============================ Package         Version State Archive_Tar     1.3.11  stable Auth_SASL       1.0.6   stable Console_Getopt  1.3.1   stable Mail            1.2.0   stable Mail_Mime       1.8.9   stable Net_SMTP        1.6.2   stable Net_Socket      1.0.14  stable PEAR            1.9.4   stable Structures_Graph 1.0.4  stable XML_Util        1.2.1   stable

check_pear.php comes back as true

Is it possible that my cli php/pear is installing somewhere different than where apache is looking? I don't use pear much so it's possible this is my issue somewhere.

Internal error PEAR mail package is not installed Backtrace:
 * 1) 0 /var/www/mediawiki/includes/User.php(3605): UserMailer::send(Object(MailAddress), Object(MailAddress), 'ACTSWiki email ...', 'Someone, probab...', NULL)
 * 2) 1 /var/www/mediawiki/includes/User.php(3583): User->sendMail('ACTSWiki email ...', 'Someone, probab...')
 * 3) 2 /var/www/mediawiki/includes/User.php(2182): User->sendConfirmationMail('changed')
 * 4) 3 /var/www/mediawiki/includes/specials/SpecialChangeEmail.php(240): User->setEmailWithConfirmation('')
 * 5) 4 /var/www/mediawiki/includes/specials/SpecialChangeEmail.php(94): SpecialChangeEmail->attemptChange(Object(User), , )
 * 6) 5 /var/www/mediawiki/includes/SpecialPage.php(613): SpecialChangeEmail->execute(NULL)
 * 7) 6 /var/www/mediawiki/includes/SpecialPageFactory.php(487): SpecialPage->run(NULL)
 * 8) 7 /var/www/mediawiki/includes/Wiki.php(291): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
 * 9) 8 /var/www/mediawiki/includes/Wiki.php(565): MediaWiki->performRequest
 * 10) 9 /var/www/mediawiki/includes/Wiki.php(458): MediaWiki->main
 * 11) 10 /var/www/mediawiki/index.php(59): MediaWiki->run
 * 12) 11 {main}