From c0afd60c07987a3519aea96b599e8558ea2361d6 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 18 Nov 2011 18:43:11 -0500
Subject: fetchmail workaround for a bug in Zimbra
Zimbra occasionally returns this response:
fetchmail: IMAP> A0007 FETCH 1 RFC822.HEADER
fetchmail: IMAP< * 1 FETCH ()
fetchmail: IMAP< A0007 OK FETCH completed
It happens when there is a corrupted message without a header in the
database. (I don't know how this message could be created, I just see it
there).
When fetchmail encounters such resonse, it gives up and disconnects.
This patch changes it so that PS_TRANSIENT is returned in this
case and fetchmail continues to fetch following messages correctly.
---
imap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/imap.c b/imap.c
index 5c3218d0..93f05f2c 100644
--- a/imap.c
+++ b/imap.c
@@ -1166,7 +1166,8 @@ static int imap_fetch_headers(int sock, struct query *ctl,int number,int *lenp)
/* try to recover for some responses */
if (!strncmp(buf, "* NO", 4) ||
- !strncmp(buf, "* BAD", 5))
+ !strncmp(buf, "* BAD", 5) ||
+ strstr(buf, "FETCH ()"))
{
return(PS_TRANSIENT);
}
--
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