Date: Fri, 19 Jun 1998 22:55:15 +0100 (BST) From: David Marsh <drmarsh@bigfoot.com> To: freebsd-questions@FreeBSD.ORG Subject: sendmail: How do I make sendmail 'fake' my 'online' mail address? (fwd) Message-ID: <199806192155.WAA01001@bigfoot.com>
next in thread | raw e-mail | index | archive | help
I'm copying this message to the main FreeBSD list, as I haven't had much response from the FreeBSD-UK list.. ----- Forwarded message from David R Marsh ----- Hi, I'm in the process of getting my new FreeBSD box onto the internet, and as can be expected, I'm having a few problems.. :-( I've finally managed to cross the first hurdle, getting user ppp working :-) I've also managed to semi-hack sendmail into just about working (using m4 to generate sendmail.conf). However, I have a few problems. The most major is that I don't know how to convince sendmail to tell the world who I am when I'm online: My local login name is 'dm'. My mailbox name with my ISP (Zetnet) is 'dmarsh', and just to make things more difficult, my Bigfoot mailbox name (my preferred email address for the From: field) is 'drmarsh' (Somebody beat me to the obvious choice!). I've been forced to introduce this short-term (I hope) kludge in the meantime by creating another local user called 'drmarsh', in order to make sendmail supply a genuine From: field. I've managed to get sendmail to masquerade as 'bigfoot.com' successfully, so hopefully (this is my first message with this new user: using dm worked similarly) this will 'assemble' a correct return-address, using the drmarsh from my *local* login, and the bigfoot.com from the MASQUERADE_AS line in my .mc file. My question is: is it possible to 'order' sendmail to insert a From: field of your own choosing, rather than have it do its too-smart-for-its-own-good method of actually assembling one from your local login name and the 'masquerade' domain? This would allow me to send mail when logged in as 'dm' (less typing, you see) which would be send with a _correct_ From: field. [Actually, I now seem to have got around this problem, but I'm not sure if my solution is the right one: I've set the FROM and REPLYTO environment variables to contain my 'real' online email address, and for double paranoia, I've also included the same address in the From: header in my ~dm/.elm/elmheaders file. This /seems/ to have got around my mixture of personalities ;-) ] My other problem is that I don't seem able to send mail from the localhost to either of my online incarnations (dmarsh@zetnet.. or drmarsh@bigfoot..) In either case, the message is bounced back. I suspect that this may be because I have included some wrong information in my .mc file, which I have included below (obviously this will be crucial in solving my first problem anyway). I suspect that I may have made a mistake in including one or more of the lines beginning Cw ... I can't remember (or understand!) exactly what these are supposed to do, but the guide in the HTML docs suggested that these were necessary? I've a horrible feeling that including those lines in the file has convinced sendmail that my localhost is able to route mail to those domains, which obviously it is not! I can see now how it's possible to write an 800 page book on sendmail! :-(( Anyway, here's the pertinant part of my .mc file (initial comment fluff snipped). ---- include(`../m4/cf.m4') VERSIONID(`@(#)trek.squelch.localnet.mc $Revision: 1.01, 1998-06-12 $') OSTYPE(bsd4.4)dnl DOMAIN(generic)dnl MAILER(local)dnl MAILER(smtp)dnl Cw trek.squelch.localnet Cw bigfoot.com Cw zetnet.co.uk MASQUERADE_AS(`bigfoot.com')dnl FEATURE(masquerade_envelope)dnl EXPOSED_USER(root) FEATURE(mailertable, `hash -o /etc/mailertable')dnl FEATURE(nodns)dnl FEATURE(nouucp)dnl define(`confCW_FILE', `-o /etc/sendmail.cw')dnl define(SMART_HOST, `mail.zetnet.co.uk') Dm bigfoot.com define(`confDOMAIN_NAME', `bigfoot.com')dnl ---- If anybody can help me out, I'd be massively grateful! Thanks, David Marsh. drmarsh@bigfoot.com (despite or maybe even according to the headers) ----- End of forwarded message from David R Marsh ----- -- David Marsh,drmarsh@bigfoot.com | http://squelch.home.ml.org/ | Glasgow/Glaschu, Scotland. *If urgent, phone: +44 141 400-0577.* | >> CYCLEWAY: cycle activism GB/IE: http://squelch.home.ml.org/cycleway/ << >> includes bikes on public transport, and cycle organisation directories << *Please don't send me long emails: very flakey phone connection at present!* To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199806192155.WAA01001>