On Sat, 2005-02-26 at 00:15 -0300, Alexandre Oliva wrote: >It's actually the other way round. I happen to prefer GNU Emacs for >several reasons, but I know from personal experience that XEmacs is >far more feature-rich than GNU Emacs. xemacs-sumo offers a lot of >applications that are not available within GNU Emacs. If we are to >remove one of them, the one that is mostly duplicate functionality is >GNU Emacs. w3-mode, mailcrypt, auctex are some of the apps that come >to mind as built into XEmacs but missing from GNU Emacs. > I already filed a bug for the absence of tramp, which was in xemacs but isn't in emacs. Despite years of using xemacs I'll certainly have a go at switching to emacs -- they're large packages and there's such a large overlap in their functionality that it makes sense to ship only one. For Exim/Postfix I don't hold out as much hope. I think the 'duplicate functionality' argument is even more backwards there, but I'm certainly willing to have a play with Postfix if I get time. It'd be useful if someone could suggest ways that a Postfix configuration can do the things which were possible with Exim in FC3 -- in particular: - Spam/virus scanning at SMTP time with tunable rejection thresholds, as in the default exim.conf - Virtual domains with aliases in TXT records in DNS, so that the owners of each domain can do maintenance with a Dynamic DNS client. (http://david.woodhou.se/eximconf/include/routers-dns-virtual) - Virtual domains with local users defined by the existence of a mbox file in a given directory, to which that user's mail is delivered. (http://david.woodhou.se/eximconf/include/routers-dir-virtual) - Automatic rewriting of outgoing reverse-paths using a timestamp and HMAC so that no mail is ever sent from a raw address like 'dwmw2@xxxxxxxxxxxxx' hence no bounces need to be accepted. So users stop getting bounces to mail they didn't send, and other sites who do sender verification callouts stop accepting fake mail. (http://www.infradead.org/rpr.html, http://david.woodhou.se/eximconf/include/routers-ses) - Correct sender verification callouts using the NULL sender to simulate a bounce instead of a postmaster address. - Recipient verification callouts for domains for which we perform backup MX services, to avoid accepting mail to nonexistent users. - Rejection of HELO claiming to be a host in certain domains which are known to always have correct reverse DNS, when the host in question lacks it. (http://david.woodhou.se/eximconf/include/acl-helo) - Rejection of hosts failing the CSV (draft-ietf-marid-csv-csa-02.txt) record of the name with which they HELO ( http://david.woodhou.se/eximconf/include/acl-helo-csv) And indeed the rest of the spam checks in and functionality seen in http://david.woodhou.se/eximconf/ including but not limited to the filters in include/acl-content and include/acl-recipient These are things which are possible with Exim as Fedora Core 3 shipped it. Will they be possible with Fedora Core 4 as shipped? Is that 1721KiB package _really_ duplicating functionality which is available elsewhere? -- dwmw2
