diff --git a/lib/postal/fast_server/client.rb b/lib/postal/fast_server/client.rb
index af93ed0..8faf184 100644
--- a/lib/postal/fast_server/client.rb
+++ b/lib/postal/fast_server/client.rb
@@ -138,9 +138,8 @@ module Postal
           end
 
           if ssl_context.cert.nil?
-            certs = Postal.smtp_certificates
-            ssl_context.cert = certs.shift
-            ssl_context.extra_chain_cert = certs
+            ssl_context.cert = Postal.smtp_certificates[0]
+            ssl_context.extra_chain_cert = Postal.smtp_certificates[1..-1]
             ssl_context.key  = Postal.smtp_private_key
           end
 
diff --git a/lib/postal/smtp_server/server.rb b/lib/postal/smtp_server/server.rb
index 3a9406d..ae6d0a0 100644
--- a/lib/postal/smtp_server/server.rb
+++ b/lib/postal/smtp_server/server.rb
@@ -37,9 +37,8 @@ module Postal
       def ssl_context
         @ssl_context ||= begin
           ssl_context      = OpenSSL::SSL::SSLContext.new
-          certs            =  Postal.smtp_certificates
-          ssl_context.cert = certs.shift
-          ssl_context.extra_chain_cert = certs
+          ssl_context.cert = Postal.smtp_certificates[0]
+          ssl_context.extra_chain_cert = Postal.smtp_certificates[1..-1]
           ssl_context.key  = Postal.smtp_private_key
           ssl_context.ssl_version = "SSLv23"
           ssl_context