[IMGate] Re: How to unsubscribe?
Hey Len, Thanks. I didn't know the info was hidden in the mail headers. What I do on my listserv is I put that information into the trailer so that it appears at the bottom of the message body on list messages. -Original Message- From: [EMAIL PROTECTED] [mailto:imgate- [EMAIL PROTECTED] On Behalf Of Len Conrad Sent: Tuesday, June 27, 2006 2:07 PM To: IMGate@mgw2.MEIway.com Subject: [IMGate] Re: How to unsubscribe? I'm sorry to post this on the list. Can someone direct me to the web page where I can remove myself from this listserve? see the headers of every list msg for list instructions. Len --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus]
[IMGate] Re: IMGate/Postfix under Ubuntu/Debian
What have you thought of IMGATE so far? How effective is it compared to your previous solution? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of William Van Hefner Sent: Thursday, August 25, 2005 8:17 AM To: IMGate@mgw2.MEIway.com Subject: [IMGate] Re: IMGate/Postfix under Ubuntu/Debian I have to admit that I am only a novice when it comes to running a Linux server, but I just set up IMgate this past week on a box using Ubuntu = and haven't had any real problems to speak of thus far. Of course, you will = need to change some of the default directories in the main.cf file, but there isn't much else to do that isn't in the IMgate doc that Len sends with = the scripts. You'll have to change the name of the log file to mail.log as = well, if you want to be able to run the stats program. I have pretty much tried to stay as far away from the command line as possible with this install, and have managed to do pretty much = everything using a combination of the Gnome interface (to initially set things up = and run updates), WinSCP, Putty and Webmin. Webmin is a bit tricky to = install on Ubuntu, but once it is up-and-running you can use it to do most daily = tasks. I have been pretty happy with the results thus far. William Van Hefner Network Admin Vantek Communications, Inc. [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of A. Clausen Sent: Wednesday, August 24, 2005 1:16 PM To: IMGate@mgw2.MEIway.com Subject: [IMGate] IMGate/Postfix under Ubuntu/Debian =20 =20 Right now both my IMGate servers are running on Slackware=20 boxes. I'm thinking of migrating one to Ubuntu, but was just=20 wondering if anybody had had any experiences with compiling=20 and maintaining Postfix under this distro. =20 --=20 A. Clausen =20 =20 =20
[IMGate] Re: Evaluating IMGATE and some questions....
-Original Message- On Behalf Of Len Conrad And spammers can't get sneaky and try to send email directly to mail.somedomain.com wrong, spammers send to any IP that answers on port 25. , bypassing imgate, because that would be prevented due to the fact that it's the mx record that controls what server they send to no, spammers very often do not respect MX records. Len Len, Thanks so much for taking the time to answer all of my questions. I guess the one thing that still concerns me is that the spammers can bypass imgate so easily. I run blackice and it reports probably somewhere in the neighborhood of 100 or more port scans from different IPs each day. I'd have to guess that within a day or two tons of spammers would be bypassing imgate altogether. Have you (or anyone else) figured out a means of preventing this from occurring? I can't restrict access to certain IPs because my users are all over the place and a non-standard port would soon be discovered. So what does everyone do?
[IMGate] Evaluating IMGATE and some questions....
Hi everyone, I'm considering a dual imgate setup as our primary means of defending against spam. How does imgate know about the email accounts that exist on the mail server so that Imgate is able to reject email sent to non-existent accounts? Do you run a script daily that updates imgate with all of the mail server account info? Another thing I am confused about, with the dual imgate configuration, is how my mail users send their email using our smtp server. I think I may understand the process. Perhaps you can tell me if my understanding is correct or if I'm mistaken in my interpretation. For every domain I host we would set up a DNS record such as: somedomain.com. IN MX 10 IMGate1.ISPdomain.com. somedomain.com. IN MX 20 IMGate2.ISPdomain.com. That means all incoming email for somedomain.com will go to one of the imgate/postfix mail servers (MTA) because of the presence of the MX records. So far so good. My users have their smtp mail server defined in their email client as mail.somedomain.com. So apparently they find the A dns record for mail.somedomain.com and the MX record is ignored (not part of the process involved when they send email) which means they will connect directly to my smtp server when the send email correct? Which is critical because we use smtpauth. And spammers can't get sneaky and try to send email directly to mail.somedomain.com, bypassing imgate, because that would be prevented due to the fact that it's the mx record that controls what server they send to (not the A record) and the MX record is pointing to imgate. Is that a correct interpretation of the in-coming flow? Now the web site also says, At each Imail machine and at each relayed machine, you have the choice of which IMGate machine to use for outgoing email. In terms of the out-going email flow.. I'll only have one email server but I will have two imgate servers. I'm also using smartermail not imail. So apparently when smartermail is going to send email to external email servers it actually would do so by forwarding email to one of the imgate servers? How do you configure that to happen? Is that normally some kind of gateway setting in the email server? How does this arrangement effect how other site's anti-spam checks work in regard to accepting email from us? Is there a possibility that by introducing the imgate servers, between our mail server and the recipient mail server, might cause the recipient mail server to reject email from us? Sorry about all the questions. Just trying to get my head around the process before I move ahead with evaluating imgate. Thanks for your help!
