postfix

Hi!

I need a solutin :)
1st email server is down for a while (5days), MX is changed to 2nd 
server (we ask to add backup MX server, but they changed pirmary), and 
now all mails got error (mail for site1 loops back to myself), so  i 
want let 2nd server accepts emails for 1st server domain, store and 
then, when MX record will be changed, send those mails to 1st server. To 
change now MX record is not possible (until Monday).

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