Does this look like what I should be shooting for ?
Or is there a better way to do this ?
Background Info:
2000 + users.
MAIL server (IBM Netfinity running Debian Woody)
1 700mhz Xeon with 512mb RAM
IBM RAID 4 18GB SCSI Drives
Server Side
--------------
Postfix (MTA) (Processes mail)
|
|------------------------AMaVIS (Virus Scanning) (Will get most)
|
|------------------------SPAM Filtering (Vixie.org)
|
|
Cyrus ---- IMAP (File Services) (storage and retrival of mail)
| (E mail messages)
| (Authentification)---------------secure
| \
|-----Sieve (Server Side Filters) or
| vaction notices |
| bounce filters etc |
| spam filtering |
| \plain text
/ |- IMSP (Storage of shared Address book)
/ (Storage of Personal Address books)
/
LDAP
\-----Global Directory for Shared Address books
\ -- Authentification
-------------------------------------------
Servers :
1 LDAP Server
authentification
directory info
1 MAIL
IMAP Cryrus Server
with Postfix (MTA)
need more RAM (2GB )
need more Hardrive space
might need extra CPU
1 Webserver (could work on webserver if rebuilt)
Mailman
Apache
- PHP Mod
Webmail
-------------------------------------------
Client Side
--------------
whatever Client -------------- Cyrus IMAP (reading/storing mail)
\
\ Postfix (sends mail out via SMTP)
Questions:
Q: I have many aliases which I set up in Blitzmail.
I want to keep these aliases can I ?
A: This would depend on if we created aliases in the LDAP schema.
Q: What would be the limits on disk space ?
A: Right now we only have 37GB for storage. That is enough for 15mgs for 2000
people 15,000,000 * 2000 = 30G. Since this is a RAID the limit
will be fixed once the machine is built.
Q: Do we have to enter our address book on every machine we use ?
A: Not if we use Cyrus and the Cyrus IMSP server.
This will allow you to create mobile Personal Address books.
http://asg.web.cmu.edu/cyrus/rfc/imsp.html
Q: Does Squirrel mail support IMSP ?
A: No, so if we used that you would have to type.
Silky Mail seems to be webmail client that works with IMSP.
Q: Can I keep my Blitzmail.
A: Only if you download it to disk or forward it to another account.
Q: Can I use Blitzmail with the IMAP server ?
A: No, Blitzmail is not IMAP complient.
Q: Would I be able to get my old mail ?
A: Yes, we could have the old mail forwarded to the new account
using virtual aliases in postfix.
--
*********************************
*Thedore Knab *
*Systems Engineer [Unix] *
*********************************
