Re: mailserver buffering
Thus said "Chrisanthy Carlane" on Tue, 27 Feb 2001 13:13:52 +0700: What I want to ask is: HOW to create that buffering thing ? Do I have to add every user for every domain(which will be a lot of user)? With a standard qmail install it's as simple as: Add their domain to /var/qmail/control/rcpthosts They must produce an appropriate MX record in their DNS information which points to your mail server. I don't know what addition complexities vpopmail might add, but I suspect this should still work. Andy -- [---[system uptime]] 11:17pm up 12 days, 23:19, 6 users, load average: 1.01, 1.11, 1.21
Re: mailserver buffering
On Tue, Feb 27, 2001 at 12:08:12AM -0700, Andy Bradford wrote: Not necessary. They will be queued up in qmail's mail queue until they can be delivered to their mail server (or until the message has been in your queue too long and the message bounces). Simple really. We've had simmilar problems with "dialup customer" wanting their email delivered via SMTP. What we did (and also use for some backup MX customers, that turn off their mailservers during weekends *argl*) is to use a maildirsmtp setup. I find it pretty annoying having some 1000 email for them in the "active" qmail queue and the customers complain "that some emails take a long time to arrive although the mailserver is back up again" (this is due to the quadratic backoff). What we do: 1) create a /var/qmail/channels/serialmail directory. 2) in this directory create another directory "dom.ain" 3) in this directory create a maildir (e.g. called "Maildir") and a .qmail-default file containing ./Maildir/ 4) add to users/assign a line like: +dom.ain-:qmaild:101:101:/var/qmail/channels/serialmail/dom.ain:-:: (101:101 is the uid:gid for qmaild:nofiles - this is because of section 10) below ;-) 5) run qmail-newu 6) add lines to control/virtualdomains dom.ain:dom.ain .dom.ain:dom.ain 7) kill -HUP pidof(qmail-send) Now mails for [EMAIL PROTECTED] will end up in the maildir /var/qmail/channels/serialmail/dom.ain/Maildir/ If the customer has more than one domain (e.g. .net, .com. org) you can use in virtualdomains example.com:dom.ain .example.com:dom.ain example.net:dom.ain .example.net:dom.ain And they will end up in the same directory. 8) In /var/qmail/channels/serialmail/dom.ain create a file "RELAYHOST" and put in it the name of the mail exchanger for that dom.ain (e.g. mail.dom.ain) 9) All you need now is a script that periodically scans (we use 3 minutes) all the /var/qmail/channels/serialmail/dom.ain directories, checks if there are eMails in Maildir/new. If so, flock the RELAYHOST file (to avoid concurrent deliveries) and start maildirsmtp to try to deliver the email to `cat RELAYHOST` We do this in a two way style, so we have one scanner and one deliverer thats been forked off from scanner. The maildir command would look like maildirsmtp /var/qmail/channels/serialmail/dom.ain/Maildir \ dom.ain- `cat .../dom.ain/RELAYHOST` mail.mydom.ain (don't forget the trailing "-" on dom.ain- above) 10) we also use tcpserver to set the ETRN="dom.ain" Variable for the ip the mail.dom.ain runs on and we use a wrapper to qmail-smtpd that checks for the existance of the ETRN Variable and if it exists it forks off deliverer for dom.ain (kinda AutoTURN like ETRN). We use this setup for about two years now and it works like a charm. There is only one problem: if the customer changes the mail exchanger without telling you *sigh* The scripts for scanner and deliverer are in perl, the qmail-smtpd wrapper is in sh. If I find some time, I'll write some docs and cleanup the code and put it up for public retrival. *sigh* but I cannot promise any date as I have nearly zero spare time right now :/ \Maex -- SpaceNet AG| Joseph-Dollinger-Bogen 14 | Fon: +49 (89) 32356-0 Research Development | D-80807 Muenchen| Fax: +49 (89) 32356-299 Stress is when you wake up screaming and you realize you haven't fallen asleep yet.
Re: mailserver buffering
On Tue, 27 Feb 2001, Andy Bradford wrote: OK, and when their emails go to my server, where do they go(what directory, do I have to make a directory for their domain? and what about the users? Not necessary. They will be queued up in qmail's mail queue until they can be delivered to their mail server (or until the message has been in your queue too long and the message bounces). Simple really. Stupid question: What controls the lifetime of those messages in the queue? Are the 'buffered' messages treated like any other message and timeout at control/queuelifetime? Thanks, Bill Carlson -- Systems Programmer[EMAIL PROTECTED]| Opinions are mine, Virtual Hospital http://www.vh.org/| not my employer's. University of Iowa Hospitals and Clinics|
Re: mailserver buffering
On Tue, Feb 27, 2001 at 10:44:42AM -0600, Bill Carlson wrote: On Tue, 27 Feb 2001, Andy Bradford wrote: OK, and when their emails go to my server, where do they go(what directory, do I have to make a directory for their domain? and what about the users? Not necessary. They will be queued up in qmail's mail queue until they can be delivered to their mail server (or until the message has been in your queue too long and the message bounces). Simple really. Stupid question: What controls the lifetime of those messages in the queue? Are the 'buffered' messages treated like any other message and timeout at control/queuelifetime? Yes. They are simply messages which have been queued, no different from any other message which has been queued by whatever means. Chris PGP signature
Re: mailserver buffering
Another question about mail buffering: When my client's mailserver try to connect to my mailserver to pick up their queue, what setting should they use for authentication? Pop3? but there's no user. If I'm using Vpopmail, do I need to add my client's domain into ../control/virtual domains? They must produce an appropriate MX record in their DNS information which points to your mail server. OK, and when their emails go to my server, where do they go(what directory, do I have to make a directory for their domain? and what about the users? Not necessary. They will be queued up in qmail's mail queue until they can be delivered to their mail server (or until the message has been in your queue too long and the message bounces). Simple really. Andy -- [---[system uptime]] 12:08am up 13 days, 10 min, 6 users, load average: 1.06, 1.20, 1.23
mailserver buffering
Hi everyone, I'm administering a service provider mail server. Some companies that are using our company Internet service also asks about mail buffering for their own mail server, so : 1. in case their mail server is down, all their emails go to my mail server. 2. every email that goes to their address go first to my mail server and they periodically download it. What I want to ask is: HOW to create that buffering thing ? Do I have to add every user for every domain(which will be a lot of user)? I'm using Qmail with Vpopmail. Thanks! Chrisanthy
Re: mailserver buffering
Thus said "Chrisanthy Carlane" on Tue, 27 Feb 2001 13:44:14 +0700: They must produce an appropriate MX record in their DNS information which points to your mail server. OK, and when their emails go to my server, where do they go(what directory, do I have to make a directory for their domain? and what about the users? Not necessary. They will be queued up in qmail's mail queue until they can be delivered to their mail server (or until the message has been in your queue too long and the message bounces). Simple really. Andy -- [---[system uptime]] 12:08am up 13 days, 10 min, 6 users, load average: 1.06, 1.20, 1.23
