diff --git a/.travis.yml b/.travis.yml
index 52595c111..bfc484fbc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -57,7 +57,7 @@ matrix:
       env: TOXENV=mypy
       <<: *not-on-master
     - python: "2.7"
-      env: TOXENV='py27-{acme,apache,certbot,dns,nginx,postfix}-oldest'
+      env: TOXENV='py27-{acme,apache,certbot,dns,nginx}-oldest'
       sudo: required
       services: docker
       <<: *not-on-master
diff --git a/certbot/plugins/disco.py b/certbot/plugins/disco.py
index 4b8e9f7ab..ec2bff8b7 100644
--- a/certbot/plugins/disco.py
+++ b/certbot/plugins/disco.py
@@ -39,7 +39,6 @@ class PluginEntryPoint(object):
         "certbot-dns-route53",
         "certbot-dns-sakuracloud",
         "certbot-nginx",
-        "certbot-postfix",
     ]
     """Distributions for which prefix will be omitted."""
 
diff --git a/tools/_venv_common.py b/tools/_venv_common.py
index 1594fd05f..ac3b5f98d 100644
--- a/tools/_venv_common.py
+++ b/tools/_venv_common.py
@@ -39,7 +39,6 @@ REQUIREMENTS = [
     '-e certbot-dns-route53',
     '-e certbot-dns-sakuracloud',
     '-e certbot-nginx',
-    '-e certbot-postfix',
     '-e letshelp-certbot',
     '-e certbot-compatibility-test',
     '-e certbot-ci',
diff --git a/tools/install_and_test.py b/tools/install_and_test.py
index 288226527..6987cf2b1 100755
--- a/tools/install_and_test.py
+++ b/tools/install_and_test.py
@@ -14,8 +14,7 @@ import shutil
 import subprocess
 import re
 
-SKIP_PROJECTS_ON_WINDOWS = [
-    'certbot-apache', 'certbot-postfix', 'letshelp-certbot']
+SKIP_PROJECTS_ON_WINDOWS = ['certbot-apache', 'letshelp-certbot']
 
 
 def call_with_print(command, cwd=None):
diff --git a/tox.cover.py b/tox.cover.py
index d0f97626a..65dc4a8a9 100755
--- a/tox.cover.py
+++ b/tox.cover.py
@@ -9,7 +9,7 @@ DEFAULT_PACKAGES = [
     'certbot_dns_digitalocean', 'certbot_dns_dnsimple', 'certbot_dns_dnsmadeeasy',
     'certbot_dns_gehirn', 'certbot_dns_google', 'certbot_dns_linode', 'certbot_dns_luadns',
     'certbot_dns_nsone', 'certbot_dns_ovh', 'certbot_dns_rfc2136', 'certbot_dns_route53',
-    'certbot_dns_sakuracloud', 'certbot_nginx', 'certbot_postfix', 'letshelp_certbot']
+    'certbot_dns_sakuracloud', 'certbot_nginx', 'letshelp_certbot']
 
 COVER_THRESHOLDS = {
     'certbot': {'linux': 98, 'windows': 93},
@@ -30,12 +30,10 @@ COVER_THRESHOLDS = {
     'certbot_dns_route53': {'linux': 92, 'windows': 92},
     'certbot_dns_sakuracloud': {'linux': 97, 'windows': 97},
     'certbot_nginx': {'linux': 97, 'windows': 97},
-    'certbot_postfix': {'linux': 100, 'windows': 100},
     'letshelp_certbot': {'linux': 100, 'windows': 100}
 }
 
-SKIP_PROJECTS_ON_WINDOWS = [
-    'certbot-apache', 'certbot-postfix', 'letshelp-certbot']
+SKIP_PROJECTS_ON_WINDOWS = ['certbot-apache', 'letshelp-certbot']
 
 
 def cover(package):
diff --git a/tox.ini b/tox.ini
index 52ae1e97d..fed30976f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,7 +35,6 @@ all_packages =
     certbot-apache \
     {[base]dns_packages} \
     certbot-nginx \
-    certbot-postfix \
     letshelp-certbot
 install_packages =
     python {toxinidir}/tools/pip_install_editable.py {[base]all_packages}
@@ -59,7 +58,6 @@ source_paths =
     certbot-dns-route53/certbot_dns_route53
     certbot-dns-sakuracloud/certbot_dns_sakuracloud
     certbot-nginx/certbot_nginx
-    certbot-postfix/certbot_postfix
     letshelp-certbot/letshelp_certbot
     tests/lock_test.py
 
@@ -111,12 +109,6 @@ commands =
 setenv =
     {[testenv:py27-oldest]setenv}
 
-[testenv:py27-postfix-oldest]
-commands =
-    {[base]install_and_test} certbot-postfix
-setenv =
-    {[testenv:py27-oldest]setenv}
-
 [testenv:py27-cover]
 basepython = python2.7
 commands =