Re: Question about address verification in MX2 when primary MX is down...

[Santiago Romero]

Hi,
Quoting the documentation[1]:

"The unverified_recipient_defer_code parameter (default 450) specifies
the numerical Postfix SMTP server reply code when a recipient address
probe fails with some temporary error. Some sites insist on changing
this into 250. NOTE: This change turns MX servers into backscatter
sources when the load is high."

  

So, do you mean that changing this parameter to 250 would make postfix 
to accept the email?

Thanks a lot.