UNIVERSITY OF CAMBRIDGE COMPUTING SERVICE

Minutes of the 120th Mail and Directory Coordination meeting held on Wednesday, 13th October 2004.

Present: P. Hazel, D.P. Carter, R.J. Dowling, F.A.N. Finch, C.J. Jardine, P. Stewart, R. Stratford, B.K. Omotani, C.E. Thompson, J.M. Wilkins

Date of next meeting: 24th November 2004 at 11:15 in C304

1. Hermes and PPSW

The default quotas on Hermes have now been increased as proposed in the minutes of the previous MDCM (250 MByte mailstore quota, 100 MByte filestore quota). The dsn.rfc-ignorant.org list is now used to suppress sender callouts on PPSW for domains which are widely known to be broken. This has reduced the volume of support queries.

A number of separate hardware faults on PPSW over the last few months appear to be caused by one or more harddisks in a single RAID set: all other components in the system have been replaced. The systems in question have come to end of their warranty period and will be retired.

A complaint has been received from a college Computer Officer regarding the blanket ban on .exe attachments (a safeguard to cover the delay before signatures for new viruses are available, typically a few hours). The possibility of removing this protection for the college mail domain in question was raised: the MDCM was not keen because of the knock on effects of a virus outbreak.

2. Email forgery protection schemes

The Microsoft Sender ID scheme appears to have foundered entirely because of its restrictive license. A committee of the Internet Engineering Task Force are now working on cryptographic forgery protection schemes, which may be more suitable to our needs.

3. cammail

The "cammail show" command is now restricted so that it will only show the cammail redirection for the authenticated user. The matching item on the Hermes menu system needs to be removed.

The Raven authenticated Web interface to the cammail database has been released and will be advertised at a Techlinks presentation by FANF on the afternoon on 13th October. The existing command line interface to the cammail database (based on SSH commands and ident callbacks) is still available on Hermes and CUS and is also used by a couple of departments and the 2hermes command on CUS. It is proposed that this interface should be removed by summer 2005.

DPC 2004-10-13