e-mail technical coordinators meeting chris bongaarts steve siirila september 13, 2006

E-mail Technical E-mail Technical Coordinators MeetingCoordinators Meeting

Chris BongaartsChris Bongaarts

Steve SiirilaSteve Siirila

September 13, 2006

E-mail server outagesE-mail server outages

Intermittent problems continued Intermittent problems continued with with redred cluster throughout August cluster throughout August

Cluster de-configured by Sep 1Cluster de-configured by Sep 1stst Plan: re-build cluster on new Plan: re-build cluster on new

hardware and simulate heavy loadhardware and simulate heavy load Work with Sun to address QFS issuesWork with Sun to address QFS issues

UMCal Hardware UMCal Hardware UpgradeUpgrade Plan: upgrade DR server, switch overPlan: upgrade DR server, switch over Hardware upgraded to Sun V440 Hardware upgraded to Sun V440

9/139/13 Due to shared home FS, full testing Due to shared home FS, full testing

was limited to off-hourswas limited to off-hours Unexpected write-protection forced Unexpected write-protection forced

SAN reconfigurationSAN reconfiguration Next step: DR server upgradeNext step: DR server upgrade

MiscellaneousMiscellaneous

Running near capacity on MX servers; will Running near capacity on MX servers; will be reconfiguring servers to gain capacitybe reconfiguring servers to gain capacity

Decreased maximum per-host SMTP Decreased maximum per-host SMTP connection limit from 10 to 5connection limit from 10 to 5

Added a 3Added a 3rdrd GopherMail server GopherMail server Now monitoring IMAP response timeNow monitoring IMAP response time Upped max clients from 96 to 150 on Upped max clients from 96 to 150 on

www.umn.eduwww.umn.edu servers 8/22 servers 8/22 Migration to DataCenter network at WBOBMigration to DataCenter network at WBOB

Total IMAP Users (March 17 - Sep 10 )

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

Date

Nu

mb

er o

f Use

rsWebmail Pro+3.0 UsersGopherMail UsersOther Users

Total IMAP Connections (Mar 17 - Sep 10)

0

200,000

400,000

600,000

800,000

1,000,000

1,200,000

1,400,000

Date

Nu

mb

er o

f Co

nn

ectio

ns

Webmail Pro+3.0 Connections

GopherMail Connections

Other Connections

Top 9 mail clients Top 9 mail clients (9/11)(9/11) Thunderbird (3453)Thunderbird (3453) Microsoft Office Outlook (3041)Microsoft Office Outlook (3041) Apple Mail (1778)Apple Mail (1778) Microsoft Outlook Express (1585)Microsoft Outlook Express (1585) QUALCOMM Windows Eudora (1427)QUALCOMM Windows Eudora (1427) Oracle Connector for Outlook (673)Oracle Connector for Outlook (673) Microsoft Outlook (617)Microsoft Outlook (617) Microsoft Entourage (584)Microsoft Entourage (584) Mozilla (556)Mozilla (556)

Incoming Email Statistics (Past 12 Months)

0.0

1.2

2.4

3.6

4.8

6.0

7.2

8.4

9.6

10.8

12.0

09/0

509

/2610

/1711

/0711

/2812

/1901

/0901

/3002

/2003

/1304

/0304

/2405

/1506

/0506

/2607

/1708

/0708

/28

Week Ending

Mil

lio

ns

of

Me

ss

ag

es

BlockedUnknown userGrey ListedAcceptedOther

Incoming Email Statistics (Aug 7 - Sep 11)

User Inactive0.7%

Blocked38.8%

Relay Denied0.3% Greylist/Ratelim

25.2%

Accepted21.9%

User allowed0.3%

Unknown user12.8%

Messages Blocked By Reason (Past 12 Months)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Week Ending

Mill

ion

s o

f M

essa

ges

Blo

cked

Spam source Dynamic Insecure Protocol Violation DNS

Spam/Virus Blocking by Reason (August 7 - Sep. 10)

Misc0

0%

Bad mail from27,283

0%

DNS5,202,808

16%

Spam source5,459,848

17%

Protocol Violation159,246

1%

Insecure5,758,285

18%Dynamic

14,931,49048%

Viruses Detected (Past 12 months)

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

200,000

8/15 9/15 10/15 11/15 12/15 1/15 2/15 3/15 4/15 5/15 6/15 7/15 8/15

Week Ending

Vir

use

s D

etec

ted

Bits ‘N BytesBits ‘N Bytes

The The polisci.umn.edupolisci.umn.edu domain is domain is now handled by central e-mail now handled by central e-mail serversservers

Work continues on Dovecot Work continues on Dovecot evaluationevaluation

‘‘Till next month…Till next month…

Steve SiirilaSteve Siirila sfs@umn.edusfs@umn.edu 612-626-0244612-626-0244

Chris BongaartsChris Bongaarts cab@umn.educab@umn.edu 612-625-1809612-625-1809