On 2011-09-07 at 16:50 +0100, Christian Gregoire wrote: > Actually, in Graeme example (below), I can't see where Exim retrieves the > relay > host(s) to check against. > > warn domains = +filter_domains:+relay_to_domains > !verify = recipient/callout=30s,defer_ok,no_cache,use_sender > set acl_m_VER = REJ--RR6: $acl_verify_message > > deny message = Recipient verification failed. > condition = ${if !eq{$acl_m_VER}{}} > > Can you explain please ?
An Exim "verify" run goes through the Routers in order, testing them in "verify" mode. It skips those with "no_verify" (as opposed to actual routing, which skips those with "verify_only"). By default, when Exim encounters an smtp transport, it stops at that point and considers an address verified. The "/callout" means "try the transport in callout mode" (which is much more limited). So "verify = recipient" -> "verify = recipient/callout" means that verification will include making SMTP connections, as warranted. Thus the importance of using some "domains" restrictions, to keep from being abusive. -Phil -- ## 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/