Matti, your recent change in smtpserver.h contains this chunk: diff -u -r1.122 -r1.123 ... @@ -371,7 +373,7 @@ struct smtpconf *cfinfo; #ifdef HAVE_WHOSON_H - int whoson_result; + int whoson_result char whoson_data[128]; #endif Which is apparently a typo... It does not compile with HAVE_WHOSON_H. Eugene