[Klug-general] Mail Servers

[Peter Childs]

Sorry I've never got my head round SPF.

SPF is a special record in the DNS right, (which should be easy to set up)
or is it a special record in the reverse DNS, which is more of a pain)

Peter.

On 17 December 2010 13:49, David Halliday <david.halliday at gmail.com> wrote:

> I presume that you are using something more like open VZ  or another kernel
> based virtualization so this warning is possibly not appropriate to your
> configuration.
>
> However as a word of warning from experience, I once set up using VMware an
> SMTP machine for a business (long story why this was the set-up chosen first
> time around that I was asked to implement). Disk IO stuff (and other things)
> can be very slow under virtualization and I quickly found that my mail
> server (which was sending out business communication with hundreds of
> customers) suffered performance issues because of disk virtualization.
>
> This wasn't a problem when I rebuilt everything under OpenVZ, just VM Ware.
>
> On 17 December 2010 13:42, Julia Freeman <klug at quixotic.org.uk> wrote:
>
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>> On Fri, Dec 17, 2010 at 12:36:57PM +0000, Peter Childs wrote:
>> >
>> > Thats what I'm doing currently. (Except I'm using Exim) the issue is
>> that
>> > certainly 1and1 limit you to 1 email every 10 seconds (which is not
>> really
>> > very many for a peak load). I've seen similar limits from most other
>> ISPs
>> >
>> > Trying to get your reverse DNS to match is a pain, Would using a shared
>> > hosting supplier fix this issue?
>> >
>> > My reading is that part of the problem is the need for SPF records.....
>>
>> Never under estimate the suitability of a virtual machine in a datacenter
>> running postfix/exim etc... with the correct dns settings as a machine to
>> send mail from... (trying for the not so blatent plug...)
>>
>> J
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>
>
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