RE: [CentOS] How to size an email server to handle 5 million emailsperday
Well, of the 5M, how many would be real emails? I handle over 1M on a quad xeon, but only a fraction of those are good. Mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Feizhou Sent: Thursday, August 23, 2007 10:43 PM To: CentOS mailing list Subject: Re: [CentOS] How to size an email server to handle 5 million emailsperday Mike Kercher wrote: On second thought, are mails being delivered locally or are you relaying to Exchange (or similar)? It cannot possibly be used for local delivery. Do you have any idea what it takes to handle 5 million local deliveries daily? I spent over three years managing a system that delivers more than 2 million emails and handles on average 200 million smtp transactions on a daily basis and you do not use a single box for this sort of thing. Delivering 5 million emails daily with a single box has got to be an outgoing box. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How to size an email server to handle 5 million emailsperday
Mike Kercher wrote: Well, of the 5M, how many would be real emails? I handle over 1M on a quad xeon, but only a fraction of those are good. Heh. Yeah, I count emails as stuff that will be delivered, stuff that will hit the queue. I guess my definitions have got in the way of this one. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How to size an email server to handle 5 million emailsperday
Right, actually the box will run an AV engine with antispam then delivered to a ms exchange 2003 server (local lan), so no local mailbox is being used. oh okay. Do you plan to build the system? (the software involved) You needs will vary on how emails are dwelt with at the smtp level. How did you come by the 5 million figure? If you are really going to scan that many, you will need lots of cpu power besides really good disk i/o if you plan to use a single box to handle everything. The barracuda spam firewall 400 appliance handles my specs but i cannot get info on what hardware they run, it's a 1u raid1, linux hardened presentation but no idea of the cpu or ram. They most probably make heavy use of NVRAM or whatever they use for the memory cache of the RAID system. The service provider was once providing with two boxes from F5 for testing and its i/o was fantastic and they somehow used the RAID cache to do their guarantee of not losing any email under any circumstances. And no, it won't be used for marketing, it's inbound only. If you do get a barracuda, please be sure to bin crap that you do not reject at the smtp level. Otherwise, you will be marked as an outscatter 'spammer'. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
