On Tue, 4 Sep 2001, Don Stokes wrote:
Most mailers have a hard time with huge queues of undeliverable mail, so such an MX is not going to be as efficient at dealing with the backlog when the primary comes back up as just leaving the mail where it is on client servers.
The thing is it moves the load from our smtp servers (which last time I looked had a lot of undelived emails for xtra customers) onto a machine run by Xtra. Due to the amount of queued email on our servers we have had to start taking actions to prevent delays of email to other sites. You can also optimise the backup MX server for dealing with a large queue to a single destination rather than a constrant stream of email to many destinations. There are also other tricks you can run depending on your mail software and network setup. The anoying bit is that Xtra has not acknowledged this in public at all, we are getting our customers blaming us for delays in email getting to Xtra addresses. -- Simon Lyall. | Newsmaster | Work: simon.lyall(a)ihug.co.nz Senior Network/System Admin | Postmaster | Home: simon(a)darkmere.gen.nz ihug, Auckland, NZ | Asst Doorman | Web: http://www.darkmere.gen.nz --------- To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog