[Faccus] Update: Connect email server resolution + changes to server settings

Natasha Jennings njennings at uwaterloo.ca
Thu Oct 10 13:40:19 EDT 2013


What is happening? Mail flow via Connect email servers has returned to normal. Messages are no longer being delayed or rejected.

What is IST doing? IST will continue to monitor email traffic and are taking Connect servers in and out of production to help ensure our external reputation and prevent potential blacklisting.

Connect email limits: The limits for the maximum number of messages a user can send per day, and the maximum number of recipients that message can be sent to, have been restored.

Maximum number of messages per day: restored to 10,000
Maximum number of recipients per message: restored to 1,000

New change to Connect email server settings: Only clients with valid Connect accounts will be permitted to route email messages through the Connect email servers. Previously, clients who did not have a Connect account were able to use their ADS or NEXUS credentials to authenticate to the system and configure their email settings in such a way that they could receive email sent to one server (e.g., Mailservices) and send email through the Connect email server.

Questions/concerns? Please contact the IST Helpdesk, helpdesk at uwaterloo.ca<mailto:helpdesk at uwaterloo.ca> or ext. 84357.


Natasha Jennings
IST Communications Officer
njennings at uwaterloo.ca<mailto:njennings at uwaterloo.ca>
519-888-4567 ext. 37951

[IST_email]<ist.uwaterloo.ca>

From: Natasha Jennings
Sent: Tuesday, October 08, 2013 10:04 AM
To: isthd at lists.uwaterloo.ca; faccus at lists.uwaterloo.ca; admin-support at lists.uwaterloo.ca; mactug at lists.uwaterloo.ca; ctsc at lists.uwaterloo.ca; ist-staff at lists.uwaterloo.ca; UWweb at lists.uwaterloo.ca; ucist at lists.uwaterloo.ca; Daily Bulletin; Aaron Miller (a2miller at uwaterloo.ca); Kirsty Budd
Subject: Important: Connect email servers blacklisted

Important: We will never ask a user for their password. If a user receives an email (or phone call) asking them to enter/share this information, it is a phishing attempt. The user should report the phishing attempt and disregard the request. It is imperative that this information be shared with users.

What is happening? As a result of the recent account comprises, which resulted in spam being routed through the Connect email server, many external servers are now rejecting email from Connect email services. While not limited to these groups, the majority of Connect email clients are Waterloo faculty and staff.

How does this impact me? Emails sent via Connect may be delayed or rejected by the recipients server.

How will I know if my message has been rejected or delayed? 4 hours after the email message has been sent, users will receive an email informing them that their message has been delayed. If after 24 hours the message has not been delivered, our server will stop attempting to deliver it and will send a message to the user telling them that it has given up.

Below is a list of servers currently rejecting email sent via Connect and the number of messages queued (as of 10 a.m.).


*        1 cdw.ca

*        2 gm.com

*        2 dell.com

Note: This list is fluid and will continue to change over the course of the next few days.

Questions/concerns? Please contact the IST Helpdesk, helpdesk at uwaterloo.ca<mailto:helpdesk at uwaterloo.ca> or ext. 84357.

We will continue to provide updates on this issue as we receive them.


Natasha Jennings
IST Communications Officer
njennings at uwaterloo.ca<mailto:njennings at uwaterloo.ca>
519-888-4567 ext. 37951

[IST_email]<ist.uwaterloo.ca>

From: Natasha Jennings
Sent: Monday, October 07, 2013 3:10 PM
To: isthd at lists.uwaterloo.ca<mailto:isthd at lists.uwaterloo.ca>; faccus at lists.uwaterloo.ca<mailto:faccus at lists.uwaterloo.ca>
Subject: SPAM mitigation changes on Connect

What is happening? Over the past 24 hours there have been four separate SPAM incidents that have leveraged Connect and UW user credentials to route SPAM worldwide.

Why is this important to note? To ensure the external reputation of the Connect email servers, the maximum number of messages a user can send per day, and the maximum number of recipients that message can be sent to, have been reduced.

Maximum number of messages per day: 1,000 (was 10,000)
Maximum number of recipients per message: 200 (was 1,000)

Theses maximums will be reviewed on Tuesday, October 15 and any updates or changes to these numbers will be communicated then.

Reminder: It is important that suspected phishing attempts be reported. Users should be advised against taking any action suggested in a questionable email. IST's Information Security Services website has valuable resources that can be shared with users.

*        Helpful tips and cyber safety information, http://ist.uwaterloo.ca/security/.

*        Phishing information and helpful posters, http://ist.uwaterloo.ca/security/posters.

Questions/concerns? Please contact Trevor Bain<mailto:trevor.bain at uwaterloo.ca>, or ext. 33738.



Natasha Jennings
IST Communications Officer
njennings at uwaterloo.ca<mailto:njennings at uwaterloo.ca>
519-888-4567 ext. 37951

[IST_email]<ist.uwaterloo.ca>

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