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Email at Urbana-Champaign

Email at Urbana-Champaign. Overview of Campus Mail flow. Inbound Email. Outbound Email. Upcoming Massmail Relays. Outbound spam filters will be improved to provide better results feedback to high-volume mail campaigns.

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Email at Urbana-Champaign

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  1. Email at Urbana-Champaign

  2. Overview of Campus Mail flow

  3. Inbound Email

  4. OutboundEmail

  5. Upcoming Massmail Relays • Outbound spam filters will be improved to provide better results feedback to high-volume mail campaigns. • High-volume mail campaigns will need to be redirected to the new massmail cluster, and the sending servers will need to be ‘registered’. • High-volume mail from within Exchange (mail-merge) will no longer be effective for quick delivery.

  6. Spam Filtering Overview

  7. Incoming Connections

  8. SPAM filtering • 65MB maximum message size • Some other technical limits … • Max 256 attachments/files • Max archive depth of 20 • Executable files or ‘protected’ archives • attachments are deleted • Subject line is appended • ‘zipping it’ does not hide the attachment sizes, counts, or file types

  9. SPAM Fitlers, by the numbers • 1,997,279,388 SMTP Connections • 806,559,366 Email Messages • 481,664 Viruses • 945,838,452 Attachments • 284,622,235 Messages blocked or quarantined • 7915 quarantined items ‘released’ • .25 Seconds per message, average • Quarantine as of 5/27/14 • 4,092,566 messages • 21.93 GB

  10. Delivery

  11. Accounts • 100,771 User Accounts • 479,543 Email addresses • 2397 destination domains

  12. CITES Exchange Service

  13. CITES Exchange Filtering • Forefront scanning for viruses/malware • Attachment rules within Exchange • Microsoft Forefront Protection for Exchange • Runs on hub transport and mailbox servers • Filter by file extension, file type, virus, and malware • Filtered attachments are replaced with a text file explaining why • Filtered messages are quarantined for 30 days then purged

  14. Exchange Mailbox Numbers • 52,000 mailboxes • 614,689,650 items • 1.35 GB average mailbox size • 15,886 average number of items per mailbox • Most items in one mailbox: 3,503,131 • Biggest mailbox: 134 GB

  15. CITES Exchange Growth

  16. CITES Exchange Growth

  17. CITES Exchange Growth

  18. Exchange server Numbers • 1,152 2TB SATA drives • 2.25 Petabytes of raw storage • 288 databases • 35 servers with Exchange roles, 75ish total servers • Servers are located in 4 different datacenters between Chicago and Urbana

  19. Upcoming Changes • Targeting fall for migration to Exchange 2013 • New webmail interface • Create Lync meetings from webmail • Faster performance

  20. Exchange 2010 v 2013 Servers • Exchange 2010: 36U • Exchange 2013: 2U

  21. University Administration Relays & Exchange

  22. UA Inbound mail flow Non UOFI Exchange to @uillinois.edu addresses: UA Proofpoint filters and relays to Exchange 2007. Exchange 2007 forwards via mailcontact or mailuserexternal address to Exchange 2010. Exchange 2010 houses mail. @Illinois.edu users with @UIllinois.edu PH entries CITES Proofpoint filters and relays to UA Proofpoint. UA Proofpoint filters and relays to Exchange 2007. Exchange 2007 forwards via mailcontact or mailuser external address to Exchange 2010. Exchange 2010 houses mail.

  23. UA outbound mail flow • Exchange 2007 mail: • Exchange 2007 mail bound for Exchange 2010 goes through Exchange connector.  Does not need to travel out or back through relays. • @UIllinois Exchange 2010 mailboxes: • Passed/filtered through CITES Proofpoint. • Non-Exchange UA mail (mailing list software/internal relays): • Passed/filtered through UA Proofpoint.

  24. UA Spam Filtering 1.Proofpoint Targeted Attack Protection 2.100MB attachment limit. 3.Security audit and compliance configurations for investigations. 4.Dedicated hardware capacity.

  25. Campus Mailing Lists

  26. ‘Listserv’ is gone! • In March we migrated the service to a new platform • Open Sourceand ‘up to date’ • Improved web interface and list management • Improved data source options • We migrated 1639 lists, their subscribers, and archives • We now have; • 1673 active lists, • 252,302 unique subscribers, • 2924 unique list owners, • 22Gb of message archives, • Multiple unique list domains and websites

  27. Exchange Distribution Groups • Mail enabled Active Directory based Universal Security or Distribution groups • Membership is managed by IT Pro or can be delegated to one owner • All group members must be mail enabled objects (users, contacts, or groups)

  28. Campus Massmail

  29. Web Tools • Massmail • Email+ • Eweek • Queue

  30. Massmail • Accessed within the Web Services Toolbox • A fixed set of groups to which email can be sent • Mail groups are provided by DMI • These emails must be submitted for approval • This service handles the approval routing based on the email content

  31. Email+ • Also accessed thru the Web Services toolbox • Intended for targeted emails • Different types of messages from which to choose • User supplied email addresses • Supports mail merge features • Reporting options are available

  32. EWeek • The ‘front end’ is a tool for the Eweek content approval process • The ‘back end’ actually uses the Email+ tool to deliver the email

  33. Queue • NEW • No front end application • A backend to the other Web Services tool which stores scheduled email in a database until successfully delivered

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