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  • Committer: Package Import Robot
  • Author(s): LaMont Jones
  • Date: 2012-03-20 13:47:16 UTC
  • mfrom: (1.1.33)
  • mto: This revision was merged to the branch mainline in revision 44.
  • Revision ID: package-import@ubuntu.com-20120320134716-v7ab94fmor2z9pvp
Tags: upstream-2.9.1
ImportĀ upstreamĀ versionĀ 2.9.1

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    fail with mis-configured sites that reject MAIL FROM: <>, while probes from
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    "double-bounce@$myorigin" would succeed.
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  * The downside of using a non-empty sender address is that the address may
 
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    end op on spammer mailing lists. Although Postfix always discards mail to
 
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    the double-bounce address, this still results in wasted network bandwidth
 
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    and server capacity. To defeat address harvesting, Postfix 2.9 and later
 
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    support time-dependent sender addresses when you specify a non-zero
 
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    address_verify_sender_ttl value.
 
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RReecciippiieenntt aaddddrreessss vveerriiffiiccaattiioonn
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As mentioned earlier, recipient address verification is useful to block mail
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        # Note: avoid hash files here. Use btree instead.
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        address_verify_map = btree:$data_directory/verify_cache
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        # Shared persistent cache (requires Postfix 2.9 or later).
 
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        address_verify_map = proxy:btree:$data_directory/verify_cache
 
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        # Disable automatic cache cleanup in all Postfix instances except
 
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        # for one instance that will be responsible for cache cleanup.
 
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        # address_verify_cache_cleanup_interval = 0
 
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        # Shared memory cache (requires Postfix 2.9 or later).
 
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        # See memcache_table(5) for details.
 
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        address_verify_map = memcache:/etc/postfix/verify-memcache.cf
 
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        # Default setting for Postfix 2.6 and earlier.
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        # This uses non-persistent storage only.
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        address_verify_map =