Will having a mis-matched round-robin MX record vs. HELO on the SMTP server
cause any issues with Spam filters?
IOW, Let's say I setup 1 MX entry:
MX - MX.domain.com (Pref 10)
Then Round robin:
A - MX.domain.com - 192.168.100.1
A - MX.domain.com - 192.168.100.2
A - MX.domain.com - 192.168.100.3
The 3 MX servers will have a HELO string of MX1.domain.com, MX2.domain.com,
MX3.domain.com
Will that mis-match cause a problem?
NOTE: Our MX servers don't send email OUT of our domain. They only receive
email.
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Nick
> Sent: Friday, November 05, 2004 8:44 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Declude.JunkMail] OT: expanding beyond one mailhost
>
> On 4 Nov 2004 at 16:01, Colbeck, Andrew wrote:
>
> Hi Andrew -
>
> > An Off Topic thread ...
> >
> > On various domains I administer, a single point of failure mailhost
> > has been good enough, but I'm shortly going to add a second
> host on a
> > second network for redundancy.
> If you are looking for a location or simply a backup mx
> please contact me off list. I do backup mx's & colos even for
> others on this list :)
>
> a classic MX = 10 and MX = 20 with a separate A
> > record for each.
> This is the way I suggest - as Pete stated:
> "This approach is well understood and time tested... not much
> to go wrong IMO."
>
> -Nick
>
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