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SCS Email

The School of Computer Science offers Email accounts for students, faculty and staff. The SCS email service offers:

  • web-mail access from anywhere on the internet
  • imap access
  • 1 GB inbox quota
  • spam protection
  • SSl/TLS connections to our mail server - this allows to configure your home system to be able to route all outgoing e-mail through SCS servers

Web-mail

The School is currently transitioning to a new mail server, the documentation below refers to the new mail server. If you have not created a new account or have not been moved to the new server then you cannot use the links below!

You can access your SCS email through one of two web-mail clients.

SCS Web-mail URL

Users that are using the old SCS mail setup daVinci can log in here: Old SCS Web-mail URL (daVinci)

General settings for the SCS email server

The email server mail.scs.carleton.ca can be accessed using the SSL and the IMAP protocol as well as through one of the school's web-mail clients. A common email application that uses IMAP is Mozilla Thunderbird (available free of charge).

INCOMING MAIL SERVER SETTINGS

  • Server Name: imap.scs.carleton.ca
  • Email Protocol: IMAP
  • Incoming Username: <your_SCS_linux_account>
  • Secure Connection: use SSL protocol (encrypted connection)
  • Port: 993

OUTGOING MAIL SERVER SETTINGS (INSIDE SCS)

If you are physically located at SCS (on the 134.117.27.XXX subnet)

  • Server Name (smtp): mail.scs.carleton.ca
  • Outgoing Username: <your_SCS_linux_account>
  • Secure Connection: No
  • Port: 25

At home or outside of Carleton you can add the SCS mail server as your outgoing mail server.

OUTGOING MAIL SERVER SETTINGS (OUTSIDE OF SCS)

If you are outside of the School of Computer Science (not on subnet 134.117.27.XXX)

  • Server Name (smtp): mail.scs.carleton.ca
  • Outgoing Username: <your_SCS_linux_account>
  • Secure Connection: use SSL protocol
  • Port: 465

Mail Client Specific Documenattion

Limits and Quotas

  • Largest incoming mail size: 75Mb
  • Largest outgoing mail size: 75Mb
  • Mail Quota: 1 Gb

Spam Protection

SCS uses the following spam protection:

  • Greylisting 1)
  • Spam Assassin

Spam Assassin

You can enable personal spamassassin settings by adding the following to your homedirectories .procmailrc file:

SHELL=/bin/sh

# Enable personal spamassassin settings
:0fw
| spamassassin -P

Once you receive your first message a default .spamassassin directory will be generated. There you will find a user_prefs file which you can edit. The file also allows for personal blacklists and whitelists and you can alter the spamassassin-score.

What does Spam Assassin do?

Spamassassin will tag an email as spam in the email header and on the Subject line. The Subject line will have [SPAM ++++++] where the + signs indicate the spam level. Now its up to the user (you) what you want to do with those emails. There are email clients that can identify emails labeled as spam and can remove them.2)

Deleting blacklisted emails

You can add a procmail rule that will delete all your personal blacklisted emails. here are the steps to enable it:

  1. Add a .procmailrc file on access/lambda (see code below)
  2. Once you receive an email with the procmail code enabled it will generate a file called .spamassassin/user_prefs. Edit this file and add your blacklisted email of the form “blacklist_from somewhere@somesite.com”
  3. Check the logfile .spamassassin/procmail.log if your procmail script deleted any messages

Here is the ~/.procmailrc file that can delete blacklisted emails:

SHELL=/bin/sh
TRASH=/dev/null
LOGFILE=$HOME/.spamassassin/procmail.log
VERBOSE=no

# Enable personal spamassassin settings
:0fw
| spamassassin -P

# Remove all spamassassin spam scored 50 (blacklisted emails)
:0
* ^Subject:.\[SPAM \+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\
+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\+\]
$TRASH

You can add this file in your account accessible through access or the lambda linux network.

Forwarding Mail

You can forward mail by logging into access.scs.carleton.ca and creating .forward file.

The .forward file can have a single forward:

John Doe <jdoe@hotmail.com>

or you can deliver a copy in your inbox plus forward a copy:

/jdoe
John Doe <jdoe@hotmail.com>

You can also create a list of forwards (one entry per line):

John Doe <jdoe@hotmail.com>
Jane Smith <jsmith@gmail.com>
Homer Simpson <hsimpson@yahoo.com>

Make sure your .forward file has perms '-rw-r–r–':

chmod 644 ~/.forward

Mail Folders

There are two different mail formats:

  • mbox - single file that holds many emails
  • maildir - directory of separate mail files

The SCS server stores files in maildir format on the server INBOX and can read mbox files on your local account.

Email upgrade and moving mail folders from daVinci

1) Greylisting is set to a 1 minute delay
2) Thunderbird has spam filtering options
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services/scs_email.1269530876.txt.gz · Last modified: 2010/03/25 11:27 by admin