> T-Online clearly states in their terms and conditions that they will > block servers who perform sender verfication towards them.
Then a different check: deny condition = ${if or{\ {eqi{$sender_address_domain}{t-online.de}}\ .ifdef _HAVE_LOOKUP_DNSDB {forany{${lookup dnsdb{>: defer_never,mxh=$sender_address_domain}}}\ {match{$item}{\N^mx\d+\.t-online\.de$\N}}}\ .endif }} condition = ${if match{${readsocket{inet:\ .ifdef _HAVE_LOOKUP_DNSDB ${reduce{${lookup dnsdb{>: defer_never,mxh=$sender_address_domain}}}\ {}{$item}}\ .else mx00.t-online.de\ .endif :25}{}{2s}}}{^554 IP=}} message = We checked that $sender_address_domain blocks us. \ So we do not accept a message we cannot reply to. # The server admin may change "deny" to "warn" and # "message =" to "control = fakereject/" # but few admins will want that (or notice and bother). -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/