Sendmail and backup MX

[Denis Beauchemin]

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Steve Campbell wrote:

> I believe DNS does this if you have your secondary MX defined in DNS=20
> with equal or lower priority than the primary.
>
> The primary will not accept mail as it's down.
> DNS will direct mail to the secondary automatically.
>
> I think this is all proper. I could be wrong though.

This will not prevent the backup MX from accepting emails while the=20
primary MX is up.  And spammers like to send to backup MX servers in=20
case they have a lesser protection...

Denis

> ----- Original Message ----- From: "Scott Silva" <ssilva at SGVWATER.COM>
> To: <MAILSCANNER at JISCMAIL.AC.UK>
> Sent: Monday, September 26, 2005 3:13 PM
> Subject: [MAILSCANNER] Sendmail and backup MX
>
>
>> Not a MailScanner issue, but ...
>> Does anybody have any simple solutions for sendmail that only lets the=

>> backup MX accept mail when the primary is down?
>> I don't want to re-invent the wheel if someone already has a working
>> solution.
>>
>> --=20
>>
>> /-----------------------\           |~~\_____/~~\__  |
>> | MailScanner; The best |___________ \N1____=3D=3D=3D=3D=3D=3D )-+
>> | protection on the net!|                   ~~~|/~~  |
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--=20
   _
  =B0v=B0   Denis Beauchemin, analyste
 /(_)\  Universit=E9 de Sherbrooke, S.T.I.
  ^ ^   T: 819.821.8000x2252 F: 819.821.8045



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