Thanx for your reply. Do you think HA is required ?? Does is make different to implement the dedicated server for each services like pop3/imap , smtp , antivirus and antispam, httpd for web access for this kind of load. What could be the bandwidth , can suggest. On 2/16/07, security <security@xxxxxxxxxxxxxxx> wrote:
nilesh vaghela a écrit : > Dear All, > > We are in planning for high end mailing services the criteria is: > > # starting with 2,00,000 user initially > # can be reach upto 5,00,000 users within 2-3 years. > # Need web access > # POP3 / IMAP/ and SMTP services > # Redundancy for server. > # Service monitoring and alarm for any critical failure. > # Antispam and Antivirus services. > # Backup obviously.. > > What could be the server or servers config ( dedicated number of POP3/ > IMAP > and SMTP server, Dedicated Antivirus and Antispam server / servers, > dedicated server for web access etc ). > > Which is the best MTA to handle mail services ?? ( Qmail, POSTFIX -- > or any > other ) Postfix is a good choice, but it seems that sendmail is faster (there is more security holes, but .. it run faster) > Which pop3 / IMAP server ( thinking for cyrusd ) cyrusd, yes .. but the most important thing is to have a good server (write cache, optimisez fs like ext3 with noatime) You can use cyrus-murder to "clusterise" cyrus. > What is the best approach for antivirus and antispam. Antivirus: you can use clamav .. for the antispam, amavis use spamassassin by default (works well :) > > Which could be the best candidate for web access ( squirrelmail, horde > ?? ) Horde is hard to configure, squirrelmail is hugly We test "round cube" webmail: all is in ajax, maybe a good solution ? > > Service monitoring NMS ( OPENNMS , negois ??) nagios do the work well :) > > Suggestions are welcome. > > Any body handling this kind of setup please give suggestion so can > plan for > the hardware and selection of the services. > > The most important thing: Write cache and Ram ! -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
-- Nilesh Vaghela ElectroMech Redhat Channel Partner and Training Partner 74, Nalanda Complex, Satellite Rd, Ahmedabad 25, The Emperor, Fatehgunj, Baroda. www.electromech.info
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