On Tue, 2007-02-06 at 10:05 -0500, Alan Cox wrote:
On Tue, Feb 06, 2007 at 09:15:37AM -0500, Matthew Miller wrote:
sendmail can do things no other MTA can. Period.
This is false. Sorry. There is nothing sendmail can do that exim cannot as both are (within the limits of memory) turing complete.
Well, Exim's ACLs aren't _quite_ Turing-complete because it limits recursion to about 20 calls iirc. But that doesn't stop silly people like Tony from doing this: http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050328/msg00086.h...
I have actually used recursion in ACLs for real: http://david.woodhou.se/eximconf/include/acl-helo-csv
I think the rewrite rules are Turing-complete.
Matthew, do you have any _examples_ of things which you believe can't be done in Exim?