Using Calmail with your
$LastChangedDate:: 2013-04-17#$ $Author: bboyd $
This document describes how you can use the CalMail system without sacrificing your current email@example.com. Major topics of this document are:
There is a web based front end to the e-mail, making the system accessable from any browser on the planet.
Spam filtering provided by using SpamAssassin now catches 95-100% of spam when configured/tuned by the user. CalMail only provides coarse filtering options to users.
The remote protocol access is IMAP with SSL. See the advantages of IMAP in the following paragraph.CalMail is the campus wide e-mail service that descended from the UCLink system. It has been in operation since December, 2003:
Provides a web based front end making the system accessable from any browser on the planet.
CalMail is run by the Campus Network Services group and has the benefit of several people (many with pagers) on call to fix and trouble shoot problems that occur.
CalMail provides excellent spam filters reaping the benefits of having a much larger user base and thus larger sample size to recognize spam and mark it accordingly. You can then use CalMail filters or filters in your own e-mail application to automatically file spam to a different folder. The CalMail system has specific staff members whose job is to deal with handling spam related issues. It seems as though better than 90% of spam is caught with the CalMail system (this number deteriorated badly in late 2006 when new spam tactics appeared, but now seems to be improved).
IMAP was designed to handle message headers before downloading entire messages, making it more efficient over slow and heavy latency links.
IMAP was designed to handle multiple client access to a single mailbox.
IMAP can manipulate server side folders, so that you can file your messages on a server and leave them there instead of storing them on your local machine.
See a more indepth analysis of IMAP vs POP.
IMAP and POP can be combined with Secure Sockets Layer (SSL) which will encrypt all data passed between your e-mail client and the server. This not only makes your password secure but all of your e-mail as well. The web based front end to Calmail is also encrypted, meaning you do not have to worry about someone in Chile reading all of your tawdry e-mails passing between your browser at the VLT and the e-mail server in Berkeley.
Update: CalMail now allows users to increase their available diskspace to 500MB ($20/year) and 1GB ($40/year). This can be paid for via a recharge account (thanks to Mike Fitzgerald for pointing this out).
If you are so inclined, you will be able to drag and drop messages between your CalMail inbox and your local folders, but only while you are running your mail client inside the Astro network. Since there is no IMAP support back and forth from astro.berkeley.edu, you will not be able to access your archived folders from outside the department via an e-mail client running on a remote computer.
If Astro is completely down, e-mail coming to you will not be forwarded to CalMail, you will only be able to send e-mail.
If you are creating a new CalMail account, you will be sharing the same namespace as all of the other users of CalMail, which means you'll probably have to create an account name that is different from your astro one. This is okay, but can be confusing.
Create a CalMail account. If you had a UCLink account, you will not have to create a CalMail one. They are the same. You may have to check with the CalMail system to insure that the transfer of your UCLink account went smoothly.
It is not necessary to have identical usernames on CalMail and the Astronomy systems. Unfortunately, this can make things a little confusing when you are logging into the web based frontend. Happily, you can modify the preferences on your CalMail account to make your outgoing e-mail look like it is coming from firstname.lastname@example.org.
Once the CalMail account is working,
login into the system:
Click on the Options link:
Click on the Personal Information
Scroll down to the "E-mail Address"
entry and fill it in with the correct address:
% echo "email@example.com" > ~/.forwardIt is important for the permissions on the file to be 0400, "-r--------" or read-only by the owner.
% chmod 0400 ~/.forward
\colby,firstname.lastname@example.orgThis will make a copy of all e-mails to the normal /var/mail/colby e-mail file on astro. It does this when it sees "\colby". Then it will send a copy to my calmail address.
Importing these archives can be complicated and prone to error, so be absolutely certain that you have backups of these files.
On the pages for each client below, I have added special instructions for handling "Local Folders or Archives". The technique shown is just an example of how I use my archives and should not be taken as the only way to use them.
It's important to realize that you will only be able to access these archives from an e-mail client that you are running on a machine that resides on the network within the department. The primary advantage is that you will be able to easily "drag and drop" e-mail messages from between your Inbox and your archives.
If you wish to access your archives from outside the department, the only blessed method at this time is to log into a machine on the department network using ssh, and then access the individual files. This can be accomplished with Pine or some other text viewer.
You must contact the IT staff for the Astronomy department to create an account that allows SMB disk access. Then follow the mounting instructions to access the disk that has your e-mail folders and import them. Note, once you have imported the mail folders from the Astro machines, your mail will be stored on the local machine and you will have to work out how you will access the imported folders remotely on your own.
The guides have snapshots from the desktop of a Mac OS X machine. The look and feel of the specific applications may look unfamiliar, but the content of each operation is the same.
Mac OS X's Mail (Panther 10.3+ & Tiger 10.4+)
Pine (is not secure on Astro Network!)
Colby recommends against using Netscape 4.x for accessing your e-mail via CalMail. It is old, has an unsupported code base and has odd limitations (e.g. IMAP and POP cannot be used simultaneously).