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-rw-r--r--fetchmail.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/fetchmail.h b/fetchmail.h
index 9480ddb0..76b88bff 100644
--- a/fetchmail.h
+++ b/fetchmail.h
@@ -30,9 +30,11 @@
*/
#define HOSTLEN 635 /* max hostname length (RFC1123) */
#define POPBUFSIZE 512 /* max length of response (RFC1939) */
-#define USERNAMELEN 40 /* max POP3 arg length (RFC1939) */
#define IDLEN 128 /* max length of UID (RFC1939) */
+/* per RFC1939 this should be 40, but Microsoft Exchange ignores that limit */
+#define USERNAMELEN 128 /* max POP3 arg length */
+
/* clear a netBSD kernel parameter out of the way */
#undef MSGBUFSIZE