A simpler way would be to add a mapping in the pop server that first checks through the virtualuser table (what sendmail uses) for the email address requested. Then just uses (for example:) joe21 as the real mailbox. This way you don't haveto listen on different IP's, and you don't have to have other config files.
So, user puts [EMAIL PROTECTED] in the username field of his pop client, your server translates this to joe21, and retrives the mail in a normal way. One way of making it easer is to call "sendmail -bv [EMAIL PROTECTED]" directly from the popserver and see that the output is. K On Thu, 26 Mar 1998 [EMAIL PROTECTED] wrote: > On Thu, 26 Mar 1998, Jens B. Jorgensen wrote: > > : This should be easy enough (at least the networking part). A socket > : must be bound to an IP/port before it can listen for connections. In > : sockets programming servers generally bind to the address '0' which > : means any address. You can easily bind to a specific IP address. If > : you've set up an ip-alias then that solves that problem. Then you just > : have to figure out how to hack the program so that it accesses a > : different source for passwords--you can replace getpwent by fgetpwent. > : Better yet you can use a custom user database and have your clients > : use APOP authentication instead of POP3's usual 'here, let me send > : your password in the clear of the network' method. Of course then your > : clients will have to use Eudora... > > <sigh> ... well, I'll pull out the Stevens network programming book > tonight. I guess I could use Perl, but this seems like a good > opportunity to get a firmet grip on C. > > My clients will never use only one email program ... we're an ISP. I > see a lot of Netscape, IE, Exchange ... blech. > > Thinking further on this, I see delivery will have to be looked into ... > each user still needs a unique mailbox. > > I'll see what I can do :) > > Nathan > > > : [EMAIL PROTECTED] wrote: > : > : > I was just thinking (it's dangerous, I don't like to do it often) ... we > : > support quite a few virtual host customers around here. Now, there are > : > solutions for http and ftp, but for email we've been using the > : > virtusertable capabilities of sendmail. This works well when someone > : > wants to receive their email at an offsite location. However, we have a > : > lot of customers who don't want (or know how to) run their own mail > : > server, or web server, so they come to us with a request for a virtual > : > host and a list of 20-30 email addresses for their employees. It's > : > really hard to explain why they can have an email address like > : > "[EMAIL PROTECTED]" but they have to retrieve mail from our mail > : > server with a username like "joe21". > : > > : > So, now to the question :) Is there a hack for popper so that it > : > listens to different IP addresses, and access a different > : > username/password database depending on which IP the request arrived at? > : > I hope that makes sense ... I also hope someone smarter than me has > : > thought about it and implemented it. Otherwise, I may try to get my > : > hands dirty ... the real programmers won't like my code at all :) > : > > : > Thanks, > : > > : > -- > : > Nathan Norman > : > MidcoNet - 410 South Phillips Avenue - Sioux Falls, SD 57104 > : > mailto://[EMAIL PROTECTED] http://www.midco.net > : > finger [EMAIL PROTECTED] for PGP Key: (0xA33B86E9) > : > > : > -- > : > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > : > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > : > : > : > : -- > : Jens B. Jorgensen > : [EMAIL PROTECTED] > : > : > > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
