It's been awhile since I looked into it, but I recommend outsourcing your email. Companies like fusemail (http://www.fusemail.com/solutions/resellers.html) will give you accounts at $0.69/month/account for a 1GB account (last time I checked anyway). They provide an API and a dashboard for managing it. They also handle backups, I believe (read the fine print before you trust me). I think there is spam filtering and anti-virus built in too. On Jan 3, 2008 9:09 AM, Ugo Bellavance <ugob at lubik.ca> wrote: > Hi, > > I will probably have to design an e-mail (and other components) > infrastructure for a small ISP soon (WISP). > > I'm doing some research to determine which components would be best > to > offer e-mail services to their client and allow the staff to manage > accounts easily. > > I usually use virtual machines a lot for isolation and easy backups > and > migration (when a hardware node is underpowered, it is easy to migrate > one or more virtual machines to another hardware node easily). > > I have looked at iSCSI and drbd for high-availability of the > storage: > http://www.pcpro.co.uk/realworld/82284/san-on-the-cheap/page1.html. > > This looks like it should be doing a great job of high availability > storage. > > For mail server, I guess I should look at an MTA and IMAP/POP > server > that supports LDAP and/or MySQL for users. Postfix should be a good > choice for MTA, as I know it (at least a little, but I know sendmail > better). For IMAP/POP, I'm not sure... Would dovecot be sufficient, or > should I try cyrus. I'd rather use components that are available for > base or extras repository (or rpmforge). I think that squirrelmail and > horde would do a good job for webmail. > > There shoudn't be any troubles having some redundancy for DNS, web > servers, mtas, but what about IMAP/POP? linux-HA? MySQL replication > should be enough, I guess. Or maybe linux-HA as well. I wonder if I > should add GFS to the mix to have multiple IMAP/POP servers use the same > storage. Or maybe IMAP proxies? > > Any insights welcome :). > > Ugo > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20080103/927d75c3/attachment-0005.html>