diff --git a/postfix/main.cf b/postfix/main.cf
index 32ba810e..68eca62a 100644
--- a/postfix/main.cf
+++ b/postfix/main.cf
@@ -30,7 +30,6 @@ smtpd_client_restrictions = permit_mynetworks, permit_sasl_authenticated, reject
 smtpd_sender_restrictions = permit_mynetworks
 smtp_tls_security_level = may
 smtp_tls_loglevel = 1
-smtpd_tls_auth_only = yes
 tls_ssl_options = NO_COMPRESSION
 tls_high_cipherlist=EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA
 smtpd_tls_protocols=!SSLv2,!SSLv3
@@ -40,6 +39,9 @@ smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
 smtpd_tls_exclude_ciphers = aNULL, LOW, EXP, MEDIUM, ADH, AECDH, MD5, DSS, ECDSA, CAMELLIA128, 3DES, CAMELLIA256, RSA+AES, eNULL
 
 # SASL
+smtp_sasl_auth_enable = yes
+smtp_sasl_type = cyrus
+smtp_sasl_security_options = noanonymous
 smtpd_sasl_auth_enable = yes
 smtpd_sasl_path = smtpd
 smtpd_sasl_type = cyrus
diff --git a/test/email-templates/test-imap.txt b/test/auth/imap-auth.txt
similarity index 100%
rename from test/email-templates/test-imap.txt
rename to test/auth/imap-auth.txt
diff --git a/test/auth/smtp-auth-cram-md5.txt b/test/auth/smtp-auth-cram-md5.txt
new file mode 100644
index 00000000..5707eecd
--- /dev/null
+++ b/test/auth/smtp-auth-cram-md5.txt
@@ -0,0 +1,26 @@
+# This is the output of a manual test.
+# CRAM-MD5 is not (yet) testable with telnet.
+#
+# # telnet localhost 25
+# Trying ::1...
+# Connected to localhost.
+# Escape character is '^]'.
+# 220 mail.my-domain.com ESMTP Postfix (Ubuntu)
+# ehlo test
+# 250-mail.my-domain.com
+# 250-PIPELINING
+# 250-SIZE 10240000
+# 250-VRFY
+# 250-ETRN
+# 250-STARTTLS
+# 250-AUTH PLAIN LOGIN CRAM-MD5 DIGEST-MD5
+# 250-AUTH=PLAIN LOGIN CRAM-MD5 DIGEST-MD5
+# 250-ENHANCEDSTATUSCODES
+# 250-8BITMIME
+# 250 DSN
+# AUTH CRAM-MD5
+# 334 PDIxMDMyODkzMTMuMTA2Mzg2MjhAbWFpbC5teS1kb21haW4uY29tPg==
+# dXNlcjFAbG9jYWxob3N0LmxvY2FsZG9tYWluIGJlYjUxNzg4OGE5ZWI0OGM1NjQ2MTYwZGY3NTY1ZWNh
+# 235 2.7.0 Authentication successful
+# QUIT
+# 221 2.0.0 Bye
\ No newline at end of file
diff --git a/test/auth/smtp-auth-login.txt b/test/auth/smtp-auth-login.txt
new file mode 100644
index 00000000..50ff99f3
--- /dev/null
+++ b/test/auth/smtp-auth-login.txt
@@ -0,0 +1,4 @@
+EHLO mail
+AUTH LOGIN dXNlcjFAbG9jYWxob3N0LmxvY2FsZG9tYWlu
+bXlwYXNzd29yZA==
+QUIT
diff --git a/test/auth/smtp-auth-plain.txt b/test/auth/smtp-auth-plain.txt
new file mode 100644
index 00000000..2e60fdc3
--- /dev/null
+++ b/test/auth/smtp-auth-plain.txt
@@ -0,0 +1,3 @@
+EHLO mail
+AUTH PLAIN dXNlcjFAbG9jYWxob3N0LmxvY2FsZG9tYWluAHVzZXIxQGxvY2FsaG9zdC5sb2NhbGRvbWFpbgBteXBhc3N3b3Jk
+QUIT
diff --git a/test/test.sh b/test/test.sh
index 13a648ee..555338b2 100644
--- a/test/test.sh
+++ b/test/test.sh
@@ -1,7 +1,6 @@
 #!/bin/bash
 
 # Set up test framework
-wget -q https://raw.github.com/lehmannro/assert.sh/master/assert.sh -O assert.sh
 source assert.sh
 
 # Testing that services are running
@@ -12,11 +11,13 @@ assert_raises "docker exec mail ps aux --forest | grep '/usr/sbin/amavisd-new'"
 
 # Testing IMAP server
 assert_raises "docker exec mail nc -w 1 0.0.0.0 143 | grep '* OK' | grep 'STARTTLS' | grep 'Courier-IMAP ready'" 0
-assert_raises "docker exec mail /bin/sh -c 'nc -w 1 0.0.0.0 143 < /tmp/test/email-templates/test-imap.txt'" 0
+assert_raises "docker exec mail /bin/sh -c 'nc -w 1 0.0.0.0 143 < /tmp/test/auth/imap-auth.txt'" 0
 
 # Testing SASL
 assert_raises "docker exec mail testsaslauthd -u user2 -r otherdomain.tld -p mypassword | grep 'OK \"Success.\"'" 0
 assert_raises "docker exec mail testsaslauthd -u user2 -r otherdomain.tld -p BADPASSWORD | grep 'NO \"authentication failed\"'" 0
+assert_raises "docker exec mail /bin/sh -c 'nc -w 1 0.0.0.0 25 < /tmp/test/auth/smtp-auth-plain.txt' | grep 'Authentication successful'"
+assert_raises "docker exec mail /bin/sh -c 'nc -w 1 0.0.0.0 25 < /tmp/test/auth/smtp-auth-login.txt' | grep 'Authentication successful'"
 
 # Testing user creation
 assert "docker exec mail sasldblistusers2" "user1@localhost.localdomain: userPassword\nuser2@otherdomain.tld: userPassword"