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Re: Recipient verification functionality request
From: Len Conrad (LConrad
Go2France.com)
Date: Tue Jul 01 2003 - 18:06:06 CDT
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>If the destination mail server is down, the incoming message
>will be deferred with a 450. This defeats the point of being
>a backup MX for domains.
No it doesn't. The sending MTA will retry. Backup MX isn't a pivotal
function that some seem to think it is.
>Also, it seems
...does, by default, but you can turn it off, or shorten the cache times:
address_verify_negative_cache = yes
address_verify_negative_expire_time = 2h
address_verify_negative_refresh_time = 1h
RAV is inferior to check_recipient_maps, esp when hit with a severe
dictionary attack.
Len
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