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E-mail Technical Coordinators Meeting
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E-mail Technical E-mail Technical Coordinators Meeting Coordinators Meeting Steve Siirila Jeff Williams March 12, 2009
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E-mail Technical Coordinators Meeting. Steve Siirila Jeff Williams March 12, 2009. Outages. 2/24 IMAP/POP slowness (on sapphire) Distributed dovecot indexes across more disks Reduced user count for good measure. E-mail Server Upgrades. - PowerPoint PPT Presentation
Transcript of E-mail Technical Coordinators Meeting
E-mail Technical E-mail Technical Coordinators MeetingCoordinators Meeting
Steve SiirilaJeff Williams
March 12, 2009
Outages
2/24 – IMAP/POP slowness (on sapphire)
Distributed dovecot indexes across more disks
Reduced user count for good measure
E-mail Server E-mail Server UpgradesUpgrades Continuing to migrate IMAP/POP Continuing to migrate IMAP/POP
servers from UFS to ZFS filesystemservers from UFS to ZFS filesystem– Ability to utilize snapshotsAbility to utilize snapshots– Allows for filesystem-level Allows for filesystem-level
compressioncompression– Positions us to utilize ZFS mirroring Positions us to utilize ZFS mirroring
between sitesbetween sites SAN storage reconfigurationSAN storage reconfiguration
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
Num
ber D
etec
ted
Per D
ay
Date
Virus/Phish Detected per Day(Sept 1 thru Mar 6)
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
Mes
sage
Flag
ged
per D
ay
Week
Spam Reports
SpamAssassin
User
0
200,000
400,000
600,000
800,000
1,000,000
1,200,000
IMAP Connections Per Day (Past Year)
Webmail Pro+3.0 Connections GopherMail Connections Other Connections
0
10,000
20,000
30,000
40,000
50,000
60,000
IMAP Users Per Day (Past Year)
Webmail Pro+3.0 Users GopherMail Users Other Users
0
2
4
6
8
10
12
14
16
18
20
22
24
Mill
ions
of M
essa
ges
per W
eek
Date
E-Mail Messages Rcvd per Week (Past Year)
Blocked
Unknown user
Grey listed
Accepted
Other
0
1
2
3
4
5
6M
illio
ns o
f Mes
sage
s per
Wee
k
Date
Message Blocked by Reason (Past Year)
Spam source
Dynamic
Insecure
Protocol Violation
DNS
Bad mail from
UMMail + Apps = ?UMMail + Apps = ?
Google agreement signed Dec Google agreement signed Dec 20082008
Opt-in available starting Fall 2009Opt-in available starting Fall 2009 Web Site Web Site http://oit.umn.edu/google-http://oit.umn.edu/google-initiative/initiative/
Direct questions to Direct questions to [email protected]@umn.edu
Bits ‘n’ Bytes
Improved spamassassin anti-phish rules
Switching GopherMail to a new loadbalancer 3/22
‘‘Till next month…Till next month…
Jeff WilliamsJeff Williams [email protected]@umn.edu 612-625-9227612-625-9227
Steve SiirilaSteve Siirila [email protected]@umn.edu 612-626-0244612-626-0244
Internet ServicesInternet Services [email protected]@umn.edu
