On Fri, 21 Dec 2007, Phil Pennock wrote: > On 2007-12-21 at 23:47 +0100, Leonardo Boselli wrote: > > Try later ... after 24 hours ???? > No, but from the same IP is appreciated. actually at least the last 3 tries came from the same server (althought it has 4 addresses) > I dislike greylisting but use it, with the daemon from Debian, munged > Looks like you're sending direct-to-MX from a portable machine which > changes IP addresses as it moves around, connecting from student > networks and then later a business DSL line. That's based on the IPs I > saw for you trying to send to me. If this is wrong, take a closer look > at your retry time settings.
NO. all the email from my department is sent throught smarthosts, or at least from a server with its own fixed IP that are on 24/24 (except in case of maintenance). > So if you keep mail queued on a system which is not even able to connect > to the Internet for long periods and is only briefly on from various > locations, then yes you'll have difficulty sending to many places. > But if you bounce around, never staying in one place for long, only > trying once, then you start to look like a spammer. I (or better my server) does not bounce around: just has a rule that if the two main servers (that offer pop3 and imap service to users, an that act as smarthosts for local users) cannot send directly within 5 minutes, to save CPU cycles, they pass the message to one of the backup servers (the ones with higher mx) that in turn tries next retries, using if failing one with a 4xx message (or being unable to connect), a different routing and of course a different ip. So in the worst case a message could be sent with 5 different IP from three different networks. But these are always from at most two servers ! > Email works better when fixed MTAs talk to fixed MTAs and client > machines talk to mailstores and fixed MTAs within their own > administrative domain. > Although it doesn't mandate use of stable IP addresses, it's worth > taking a look at BCP 134 (RFC 5068) on "Email Submission Operations: > Access and Accountability Requirements" to get a feel for the current > IETF thinking on how email architectures should work. Whether or not > the MTA on a laptop counts ... *shrugs* Ok but what if my MTA has 4 address on 4 subnets from 3 different providers an use each one in turn ? (none of provider warrant a 100% up time, but just a nominal 98.5). -- ## 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/
