Thanks for all the ideas. Regards, Basti
On 12.03.2014 14:02, Todd Lyons wrote: > On Wed, Mar 12, 2014 at 5:37 AM, Heiko Schlittermann > <[email protected]> wrote: >> basti <[email protected]> (Mi 12 Mär 2014 13:19:27 CET): >>> Hello, >>> i have running exim4 (4.80) on debian. >>> All is running fine, now I need to get a mail from google with a >>> response link, the link is only valid for a few minutes an is send from >>> different servers so it is greylist again and again. >> You should redesign your greylisting approach. Greylisting keyed on >> sender ip address is simply wrong. (IMHO) > > Agreed, it > >> We do greylisting (if at all) keyed on "$sender_address/$local_part@$domain". >> Exactly because some larger domains use different servers for different >> delivery attempts. > > We do greylisting per > "$sender_address:$local_part@$domain:$sender_host_address", but only > if the IP doesn't reverse resolve to anything or if its rDNS looks > like a dynamic IP. In general, we find that: > 1) any multiple outbound IP system is properly designed and has rDNS, > so it doesn't hurt them. > 2) any sending system which does not have rDNS is not sending > something we will want. > 3) any sending system which does have rDNS but is a consumer > cablemodem or dsl modem is either a spam source or using > mis/non-configured SMTP Auth. > > YMMV, but it works for us. > > ...Todd > -- ## 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/
