Today we detect a very strange issue with our Zimbra server (Release 6.0.10_GA_2692.DEBIAN5_64 DEBIAN5_64 FOSS edition.)
We cant add external account if that account are from a zimbra server. I do the test with 3 account in different zimbra servers and the error is the same.
I can access to the pop account using telnet to the 110 port. If i add an external account with other servers (i have others with courier pop) work perfectly.
I sniff the traffic with snort, and only show that.
+OK pop.une.net.co Zimbra POP3 server ready
+OK Capability list follows
SASL PLAIN X-ZIMBRA
EXPIRE 31 USER
+OK Begin TLS negotiation
Zimbra Collaboration Suite1#0ZZimbra Collaboration Suite1^\0Spop.une.net.co0^^^W^M101203221857Z^W^M11 1203221857Z0<81><83>1^K0
And show the error attached.
Apparently, the auth process is not working (maybe is because is trying to use TLS negotiation?).
how can i debug the externals account configured on zimbra?
thanks and regards