Hi Ali, Your requirement is very specific and definitely needs some testing to see if it is compatible with the way IMail works. Sending all mail to the same user in IMail means continually appending and manipulating one mailbox file. I can see this as being a major bottleneck compared to handling the same amount of mail to lots of individual accounts. Just imagine what happens when the 30 or more SMTP processes are all trying to local deliver to the same large file at the same time. Far too much concurrency for my mind. If you do use Imail, definitely get a good RAID controller that has lots of memory like a Mylex 250 or 1100 as these tend help alot with these types of concurrency issues. IMail works in the same way as many of the standard unix mail server in this respect and a core part of the single mailbox design seems to be to preserve file system space as on most filesystems individual small files are much less space efficient than large files containing the same data. Basically this works out as a compromise because large files are bad for concurrency whereas lots of files are bad as they use about 1kb FAT space each on top of the space on the file system. Having said that NTFS (post SP6a) seems to be well geared to handling lots of files. There are a couple of alternatives (IIS SMTP for one, especially w2k) which store their data in individual files and may or may not be more suitable. Just my �.02 worth. Cheers Steve Steven Moore Internet Development Engineer Research Machines +44 1235 823522 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ali Port Sent: 04 September 2000 17:57 To: [EMAIL PROTECTED] Subject: [IMail Forum] Real life throughput? Does anybody have any real world statistics on the throughput of incoming mail using IMail. Maybe even hazard a good 'well we get this' type number. I've seen the KB article that states IMail can handle 250,000 2K messages in a day on a dual Pentium 120MHz with 64Mb RAM. Our server is a bit better than that (dual Pentium III 500MHz 256Mb RAM) but we would want to receive a lot more messages. It would only be for receiving mail and all messages would go to the same account (probably from a few external accounts). However we would be talking about millions of <1Kb messages a day. We would then use a server based mail control to pull them out of the mailbox. Anyone think IMail is up to the task or know of any mail server that is? Cheers for any info. Ali. Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ STANDARD DISCLAIMER: This message is confidential. You should not copy it or disclose its contents to anyone. You may use and apply the information only for the intended purpose. Internet communications are not secure and therefore RM does not accept legal responsibility for the contents of this message. Any views or opinions presented are only those of the author and not those of RM. If this email has come to you in error please delete it and any attachments. Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
