On 02/18/2012 07:11 PM, [email protected] wrote:
I'm not using dovecot, is that something I should consider?
I would. Not only does it allow you to enforce encrypted passwords, but
it is much more efficient with IMAP, especially large mailboxes. If
you're not doing IMAP, there's not much difference though. But who's not
using IMAP these days? It's the cat's meow. ;) Dovecot will be the stock
QMT MUA at some point, but I'd hate to give a timeframe. Converting to
dovecot is pretty easy. See the wiki for details.
Just FYI, Ironport is a filtering device developed by a company called
Ironport. They use a proprietary algorithm to calculate your mail server's
"reputation". That company purchased Spamcop. Cisco then purchased Ironport.
There is no removal process AT ALL. They barely acknowledge emails
to the support address unless you psycho email them.
>
Then you receive a "canned" response saying that you mailserver's volume determines how
quickly your reputation returns to "normal" and there is
really no "manual intervention". A low volume mailserver can take a week or more to
recover to a neutral rating which is one step above "dirt".
Meanwhile everyone with an Ironport mail filter is looking at this "reputation" score
and, basically, blocks email from anyone with a "poor"
reputation. You can look at your server's reputation atwww.senderbase.org.
There you will see all of the statistics compiled regarding your
servers IP address: volume, rDNS blocklist listings, and, most importantly,
your SBRS rating, over which you have no control.
Interesting info. FWIW, I see in my logs that spamcop is still rejecting
quite a few messages. I hope their not FPs. I only use spamcopy and
zen.spamhaus at this point.
If you have a spare IP address available, it might be wise to have a
spare QMT relay server sitting there for relaying. Simple to route
outbound email there via smtproutes file (see wiki). If you have a VM
host, this should be pretty trivial to set up.
I know McAfee has a reputation score, and I think Trendmicro as well.
The one I despise is Barracuda. I've seen a couple of these that were
(mis)configured to check the originator's IP address (not the sending
server's address), which is totally insane.
All is a day's work for an email administrator. If we weren't having fun doing
this, what else would we be doing, right?
Perhaps. I figure email's important and not going anywhere soon, so it's
worthwhile.
QMT has been great for me. Let me know how I can help, I feel I need to
contribute in some way.
Hop on over to the devel list. We'll be ramping up some exciting
developments very soon. There will be plenty to do so I expect everyone
can do something to contribute, from writing wiki content, to testing,
to answering emails. And if you care to do some php/web development,
your talents will be cherished. :)
Thanks to everyone for their participation. This is entirely a community
project at this point, and without your participation, there is no project.
--
-Eric 'shubes'
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