Hi John, Funnily enough I have just investigated the same issue. I have contacted Yahoo regarding it via a form on their website as instructed by the deferred message in our email logs. I suspect this will fix it.
Dave John Robinson wrote: > A substantial amount of my outgoing mail for Yahoo! is being delayed, > some of it for a long time, by their odd implementation of greylisting. > Well, I think that's what it is; they say they don't greylist, in the > usual sense - defer everything at the first attempt, then accept on the > second - but they certainly do something weird involving deferring mail: > sometimes they accept first time, other times they defer a dozen times. > I wouldn't care if it was just Yahoo! webmail, but since they run all > the mail systems for BT Internet, this is potentially quite irritating > to my clients. > > I've just set up SPF records for some of my domains. Any idea if this > will help? > > If not, do I need to do DKIM on my outgoing mail? Is there a handy > explanation and how-to? Neither experimental-spec nor the wiki page hold > my hand quite enough; I feel like I'm not quite getting it. > > Many thanks, > > John. > > > -- ## 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/
