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E-mail Technical E-mail Technical Coordinators MeetingCoordinators Meeting
Chris BongaartsChris Bongaarts
Steve SiirilaSteve Siirila
March 9, 2005
E-mail OutagesE-mail Outages
Performance issues on email Performance issues on email servers caused some brief outagesservers caused some brief outages
All Twin Cities email servers are All Twin Cities email servers are now SAN-connectednow SAN-connected
Continuing to migrate from Continuing to migrate from CLARiiON to DMX SAN framesCLARiiON to DMX SAN frames
SSL accelerator cards configuredSSL accelerator cards configured
Spam/Virus FilteringSpam/Virus Filtering
Virus definitions now updated at Virus definitions now updated at least once daily (instead of least once daily (instead of weekly)weekly)
Upgraded to SpamAssassin 3.0.2Upgraded to SpamAssassin 3.0.2
Messages Blocked (by reason)
0
200000
400000
600000
800000
1000000
1200000
1400000
1600000
1800000
3/8
3/29
4/19
5/10
5/31
6/21
7/12
8/02
8/23
9/13
10/0
410
/25
11/1
512
/06
12/2
701
/17
02/0
702
/28
Week Ending
Nu
mb
er
of
Me
ss
ag
es
Blo
ck
ed
Spamsource
Dynamic
Insecure
DNS
Bad mailfrom
Spam/Virus Blocking by Reason (Feb 7 - Mar 6)
2,263,16230.61%
3,306,40344.73%
5,0490.07%
1,308,85617.70%
509,2666.89%
Spam source
Dynamic
Insecure
DNS
Bad mail from
Incoming Email Statistics
0
500000
1000000
1500000
2000000
2500000
3000000
3500000
2004
0223
2004
0322
2004
0419
2004
0517
2004
0614
2004
0712
2004
0809
2004
0906
2004
1004
2004
1101
2004
1129
2004
1227
2005
0124
2005
0221
Week Ending
Nu
mb
er
of
Me
ss
ag
es
Accepted
User allows allemailPermitted
perm local only
Blocked
Blocked local
Relay denied
Unknown user
User inactive
Pre-init user
Temporary error
Departmental MTA Departmental MTA RegistrationRegistration MTAs and other devices which are MTAs and other devices which are
using the using the relay.tc.umn.edurelay.tc.umn.edu service service must registermust register– Send IP address, type of device, and Send IP address, type of device, and
contact information to contact information to [email protected]@umn.edu Includes the relay-by-IP service Includes the relay-by-IP service
(currently 160.94.160.49)(currently 160.94.160.49) Unregistered MTAs will be denied Unregistered MTAs will be denied
access starting July 5access starting July 5thth
Phase-out of clear-text Phase-out of clear-text passwordspasswords Next general mailings will be sent Next general mailings will be sent
out on April 12out on April 12thth, 19, 19thth, and 26, and 26thth Last FTP mailing went out Jan 26Last FTP mailing went out Jan 26thth
Webmail only uses SSL connections Webmail only uses SSL connections for central email accessfor central email access
IMAP statistics correction; includes IMAP statistics correction; includes SSL connections via port 143 SSL connections via port 143 (STARTTLS)(STARTTLS)
POP Users
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1/3/05 1/10/05 1/17/05 1/24/05 1/31/05 2/7/05 2/14/05 2/21/05 2/28/05 3/7/05
Week ending
Nu
mb
er
of
Us
ers
NONSSL
SSL
POP users: Feb 7 - Mar 6
1450367%
721633%
ssl
nonssl
IMAP users: Jan 11 - Feb 7
6,17741%
8,70959%
ssl
nonssl
IMAP USERS (03/01-03/08)
2,45621%
9,44379%
ssl
nonssl
SMTP Gateway Usage
0
5000
10000
15000
20000
25000
Week Ending
Nu
mb
er
of
Use
rs
Non-auth
Auth
SMTP Gateway Usage (Feb 28 - Mar 6)
Unauthenticated SMTP(smtp-gw.tc.umn.edu)
7409 users34%
Authenticated SMTP(smtp.umn.edu) 14244 users
66%
FTP USERS
0
100
200
300
400
500
600
700
800
900
20050103
20050110
20050117
20050124
20050131
20050207
20050214
20050221
20050228
20050307
Week Ending
Nu
mb
er
of
Us
ers
FTPusers
MMP EvaluationMMP Evaluation
Will be upgrading to MMP during Will be upgrading to MMP during Summer 2005Summer 2005
Obsoletes current MTA product Obsoletes current MTA product (Mail*Hub 2000)(Mail*Hub 2000)
Obsoletes current X.500 directory Obsoletes current X.500 directory product (GDS 2001)product (GDS 2001)
LyrisLyris
Full production mode scheduled Full production mode scheduled for March 17for March 17thth
Contact U Relations for Contact U Relations for informationinformation
‘‘Till next month…Till next month…
Chris BongaartsChris Bongaarts [email protected]@umn.edu 612-625-1809612-625-1809
Steve SiirilaSteve Siirila [email protected]@umn.edu 612-626-0244612-626-0244
