diff --git a/.env.production.sample b/.env.production.sample
index 27de27de49..cf1654e993 100644
--- a/.env.production.sample
+++ b/.env.production.sample
@@ -11,10 +11,11 @@ DB_PASS=
 DB_PORT=5432
 
 # Federation
-# Note: Changing LOCAL_DOMAIN or LOCAL_HTTPS at a later time will cause unwanted side effects.
+# Note: Changing LOCAL_DOMAIN at a later time will cause unwanted side effects, including breaking all existing federation.
 # LOCAL_DOMAIN should *NOT* contain the protocol part of the domain e.g https://example.com.
 LOCAL_DOMAIN=example.com 
-LOCAL_HTTPS=true
+
+# Changing LOCAL_HTTPS in production is no longer supported. (Mastodon will always serve https:// links)
 
 # Use this only if you need to run mastodon on a different domain than the one used for federation.
 # You can read more about this option on https://github.com/tootsuite/documentation/blob/master/Running-Mastodon/Serving_a_different_domain.md
diff --git a/app/services/process_mentions_service.rb b/app/services/process_mentions_service.rb
index e12721c464..46401f298a 100644
--- a/app/services/process_mentions_service.rb
+++ b/app/services/process_mentions_service.rb
@@ -11,18 +11,20 @@ class ProcessMentionsService < BaseService
     return unless status.local?
 
     status.text = status.text.gsub(Account::MENTION_RE) do |match|
-      begin
-        mentioned_account = resolve_remote_account_service.call($1)
-      rescue Goldfinger::Error, HTTP::Error
-        mentioned_account = nil
+      username, domain  = $1.split('@')
+      mentioned_account = Account.find_remote(username, domain)
+
+      if mention_undeliverable?(status, mentioned_account)
+        begin
+          mentioned_account = resolve_remote_account_service.call($1)
+        rescue Goldfinger::Error, HTTP::Error
+          mentioned_account = nil
+        end
       end
 
-      if mentioned_account.nil?
-        username, domain  = $1.split('@')
-        mentioned_account = Account.find_remote(username, domain)
-      end
+      mentioned_account ||= Account.find_remote(username, domain)
 
-      next match if mentioned_account.nil? || (!mentioned_account.local? && mentioned_account.ostatus? && status.stream_entry.hidden?)
+      next match if mention_undeliverable?(status, mentioned_account)
 
       mentioned_account.mentions.where(status: status).first_or_create(status: status)
       "@#{mentioned_account.acct}"
@@ -37,6 +39,10 @@ class ProcessMentionsService < BaseService
 
   private
 
+  def mention_undeliverable?(status, mentioned_account)
+    mentioned_account.nil? || (!mentioned_account.local? && mentioned_account.ostatus? && status.stream_entry.hidden?)
+  end
+
   def create_notification(status, mention)
     mentioned_account = mention.account
 
diff --git a/app/views/admin/accounts/_account.html.haml b/app/views/admin/accounts/_account.html.haml
index 598f6cddd0..dfa7c56491 100644
--- a/app/views/admin/accounts/_account.html.haml
+++ b/app/views/admin/accounts/_account.html.haml
@@ -6,7 +6,10 @@
       = link_to account.domain, admin_accounts_path(by_domain: account.domain)
   %td
     - if account.local?
-      = t("admin.accounts.roles.#{account.user&.role}")
+      - if account.user.nil?
+        = t("admin.accounts.moderation.suspended")
+      - else
+        = t("admin.accounts.roles.#{account.user.role}")
     - else
       = account.protocol.humanize
   %td
diff --git a/config/initializers/ostatus.rb b/config/initializers/ostatus.rb
index bb8591f747..5773b72903 100644
--- a/config/initializers/ostatus.rb
+++ b/config/initializers/ostatus.rb
@@ -3,11 +3,12 @@
 port     = ENV.fetch('PORT') { 3000 }
 host     = ENV.fetch('LOCAL_DOMAIN') { "localhost:#{port}" }
 web_host = ENV.fetch('WEB_DOMAIN') { host }
-https    = ENV['LOCAL_HTTPS'] == 'true'
 
 alternate_domains = ENV.fetch('ALTERNATE_DOMAINS') { '' }
 
 Rails.application.configure do
+  https    = Rails.env.production? || ENV['LOCAL_HTTPS'] == 'true'
+
   config.x.local_domain = host
   config.x.web_domain   = web_host
   config.x.use_https    = https