On Mon, Apr 12, 2010 at 9:27 AM, Khurram Shahzad <[email protected]> wrote:
> Hello Folks, > > > About a year ago a very heated thread was started on this list > > http://www.mail-archive.com/[email protected]/msg32887.html > > > Let me tell you that my carrier as a sys admin is as old as 1 month. My Sys > admin recently left and I had no choice but to do it myself. I hardly know > key commands of linux yet. > > But I was able to find why my subscribers on yahoo were not getting my > emails, the problem was same as Catalin Constantin faced and mentioned on > that thread > > ie the BLOODY error > > 2010-04-12 10:08:37 1O14L8-00068Z-4z == [email protected] R=dk_lookuphost > T=dk_remote_smtp defer (-53): retry time not reached for any host > > > > my exim logs would show that 1 or 2 messages would go just fine and then > thousands of lines of these temp defer error > > > So searching for solution I came across this thread, but after reading each > and every thread I came to know that nobody was able to solve the problem > and it was a total waist of time (despite there being many smart Sys admins > who posted very useful tips there) > > So being a programmer, i thought I should try something out of box and here > is what finally worked for me. > > Since the problem with defer messages is per IP basis, I thought why not > randomize your outgoing IP interfaces to see what happens. > > So I did the following > > > First, you need a function that pick a random IP from a list. Add it to > /etc/exim.pl (somwhere at the end, above last line) > > sub randinet { > @inet = ("x.x.x.1", "x.x.x.2", "x.x.x.3", "x.x.x.4"); > return $inet[int rand($#inet)]; > } > > > Then edit /etc/exim.conf and search for a line that start with “interface=” > > remote_smtp: > driver = smtp > interface = ${if exists > > {/etc/mailips}{${lookup{$sender_address_domain}lsearch*{/etc/mailips}{$value}{}}}{}} > > replace last line with > > interface = "${perl{randinet}}" > > And the rDNS lookup for x.x.x.{1,2,3,4} all point back to this very server, right? -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ "If you have nothing good to say about someone, just shut up!." -- Lucky Dube -- ## 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/
