diff --git a/tests/data/test823 b/tests/data/test823
index 5e4d59356..650b21919 100644
--- a/tests/data/test823
+++ b/tests/data/test823
@@ -35,6 +35,7 @@ body
 imap
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test832 b/tests/data/test832
index 4873e3569..044edb192 100644
--- a/tests/data/test832
+++ b/tests/data/test832
@@ -27,6 +27,7 @@ REPLY * A002 NO AUTH exchange cancelled by client
 imap
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test835 b/tests/data/test835
index 2379a3abb..34f28b71b 100644
--- a/tests/data/test835
+++ b/tests/data/test835
@@ -38,6 +38,7 @@ body
 imap
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test869 b/tests/data/test869
index 8350373c0..d2ae7ce3e 100644
--- a/tests/data/test869
+++ b/tests/data/test869
@@ -37,6 +37,7 @@ body
 pop3
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test878 b/tests/data/test878
index 9027b0b47..98961fbe7 100644
--- a/tests/data/test878
+++ b/tests/data/test878
@@ -28,6 +28,7 @@ REPLY * -ERR AUTH exchange cancelled by client
 pop3
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test881 b/tests/data/test881
index 02ac8fbd8..80eca500c 100644
--- a/tests/data/test881
+++ b/tests/data/test881
@@ -40,6 +40,7 @@ body
 pop3
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test907 b/tests/data/test907
index 16a4338c5..f784a8de7 100644
--- a/tests/data/test907
+++ b/tests/data/test907
@@ -27,6 +27,7 @@ REPLY  235 Authenticated
 smtp
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test934 b/tests/data/test934
index 0be180376..1794d81d8 100644
--- a/tests/data/test934
+++ b/tests/data/test934
@@ -27,6 +27,7 @@ REPLY * 501 AUTH exchange cancelled by client
 smtp
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>
diff --git a/tests/data/test937 b/tests/data/test937
index 10f786c97..a2cb9b5c0 100644
--- a/tests/data/test937
+++ b/tests/data/test937
@@ -30,6 +30,7 @@ REPLY dXNlcgB1c2VyAHNlY3JldA== 235 Authenticated
 smtp
 </server>
 <features>
+!SSPI
 debug
 crypto
 </features>