fetchmail workaround for a bug in Microsoft Exchange

treat missing header in response to a FETCH command as a transient error
(Reported by John Connett)

if there are too many transient errors, log it.

1 files changed, 1 insertions, 1 deletions

diff --git a/imap.c b/imap.c
index 93f05f2c..cb87eda5 100644
--- a/imap.c
+++ b/imap.c
@@ -1182,7 +1182,7 @@ static int imap_fetch_headers(int sock, struct query *ctl,int number,int *lenp)
 	/* an unexpected tagged response */
 	if (outlevel > O_SILENT)
 	    report(stderr, GT_("Incorrect FETCH response: %s.\n"), buf);
-	return(PS_ERROR);
+	return(PS_TRANSIENT);
     }
     return(ok);
 }