diff --git a/.env.example b/.env.example
index 1811723..6551a8d 100644
--- a/.env.example
+++ b/.env.example
@@ -6,8 +6,6 @@ KEY=''
 # Delivery address is the original email before the "@".  e.g. if delivering to "support_mt@mayfirst.org", set this to "support_mt"
 DELIVERY_ADDRESS='support_mt'
 CATCHALL_PROJECT_NAME='catch'
-# The path to the root directory containing this file.
-FILEPATH='/usr/local/bin/redirect_test'
 # Leave these three blank for false.
 DEBUG_MODE=
 DRY_RUN=
diff --git a/getmappings.php b/getmappings.php
index 7524221..7360505 100755
--- a/getmappings.php
+++ b/getmappings.php
@@ -20,7 +20,7 @@ $membershipMapping = getUserMemberships($userList, $client);
 writeUsers($projectsById, $membershipMapping);
 
 function writeDomains($projectsByDomain) {
-  $domainHandle = fopen('./data/domainmap.csv', 'w');
+  $domainHandle = fopen(__DIR__ . '/data/domainmap.csv', 'w');
   foreach ($projectsByDomain as $domain => $identifier) {
     fwrite ($domainHandle, "$domain,$identifier\n");
   }
@@ -28,7 +28,7 @@ function writeDomains($projectsByDomain) {
 }
 
 function writeUsers($projectsById, $membershipMapping) {
-  $userHandle = fopen('./data/usermap.csv', 'w');
+  $userHandle = fopen(__DIR__ . '/data/usermap.csv', 'w');
   foreach ($membershipMapping as $email => $projectId) {
     fwrite ($userHandle, "$email,{$projectsById[$projectId]}\n");
   }
diff --git a/redirect.php b/redirect.php
index 53769aa..5206679 100755
--- a/redirect.php
+++ b/redirect.php
@@ -155,12 +155,11 @@ function SendToMailHandler($input, $params) {
 
 //See if this email address is associated with a particular project
 function ParseSenderEmail($from) {
-  $filePath = getenv('FILEPATH');
   $project = $email = NULL;
   if(preg_match("/\b([A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4})\b/i", $from, $matches)) {
     $email = $matches[1];
   }
-  if (($handle = fopen($filePath . "/" . "data/usermap.csv", 'r')) !== FALSE) {
+  if (($handle = fopen(__DIR__ . "/" . "data/usermap.csv", 'r')) !== FALSE) {
     while (($data = fgetcsv($handle, 1000)) !== FALSE) {
       $users[$data[0]] = $data[1];
     }
@@ -172,12 +171,11 @@ function ParseSenderEmail($from) {
 }
 
 function ParseSenderDomain($email) {
-  $filePath = getenv('FILEPATH');
   $domain = $project = NULL;
   if(preg_match("/@(.*)\b/", $email, $matches)) {
     $domain = $matches[1];
   }
-  if (($handle = fopen($filePath . "/" . "data/domainmap.csv", 'r')) !== FALSE) {
+  if (($handle = fopen(__DIR__ . "/" . "data/domainmap.csv", 'r')) !== FALSE) {
     while (($data = fgetcsv($handle, 1000)) !== FALSE) {
       $domains[$data[0]] = $data[1];
     }