Comment 0 for bug 1155879

This issue is reproducible on Ubuntu 10.10, 11.10 and 12.10.

When connecting to mailroot3.namespro.ca using IMAPS (SSL), the client will progress some way through opening a large mailbox, typically receiving between zero and a few thousand headers, before it hangs in recv(). The issue is reliably reproducible on a mailbox containing ~2600 messages.

This issue only occurs when using TLSv1 to connect. Disabling TLSv1 in muttrc (presumably falling back to SSLv3) or using cleartext IMAP both avoid this issue.

Wireshark shows that the most recent data exchange was from the server to the client.

Running nmap(1) suggests the remote mail server is "MailEnable imapd."

(Note, in the attached trace, a connection is being proxied through an SSH tunnel, so the outgoing connection will appear to go to localhost:9993. This issue occurs with a direct connection as well.)

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: mutt 1.5.21-6
ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Sat Mar 16 01:12:15 2013
ExecutablePath: /usr/bin/mutt-org
InstallationDate: Installed on 2013-03-12 (3 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
SourcePackage: mutt
UpgradeStatus: No upgrade log present (probably fresh install)