> One of the things I've considered for #2 is having a secondary MX > which is configured to give back a 4xx for everything. > However, I don't know if there are sending hosts who would fail to > go back to the primary MX when it came back up. >
This is an interesting idea and I feel like an idiot for not thinking of it myself - course that's why we have these lists :-) Does anyone know how effective this method may be? I like it because of it's simplicity, low/no maintenance, and ridiculously low system requirements. I could have one or more $15/month VPS servers running in this role. However, the question remains, is this method more effective than leaving it up to the sending MTA to retry a connection failure? -Ken -- ## List details at http://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/
