[dba-Tech] Seeking your advice regarding false positives for spam lists

Jim Lawrence accessd at shaw.ca
Sat Feb 6 16:15:58 CST 2010


Oh yes ofcourse...

Jim



-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Mark Breen
Sent: Saturday, February 06, 2010 10:48 AM
To: Discussion of Hardware and Software issues
Subject: Re: [dba-Tech] Seeking your advice regarding false positives for
spam lists

Hello Jim,

I am not sure if I understand your question.  When I talk of migrating them
to gmail, I am referring to Google Apps Email system (based on the gmail
engine)

does that answer your question?

thanks

Mark



On 6 February 2010 15:56, Jim Lawrence <accessd at shaw.ca> wrote:

> How do you resolve the email address so it reads:
>
> george at GeorgesDomain.com
>
> ...instead of...
>
> george at gmail.com
>
> ?
>
> Jim
>
>
>
> -----Original Message-----
> From: dba-tech-bounces at databaseadvisors.com
> [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Mark Breen
> Sent: Saturday, February 06, 2010 3:29 AM
> To: Discussion of Hardware and Software issues
> Subject: Re: [dba-Tech] Seeking your advice regarding false positives for
> spam lists
>
> Hello Guys,
>
> Thank you all for your input, this was useful.
>
> I looked up the domain name and yes, it is on one of the blacklists.
IIUC,
> It is actually the smtp server that is on the blacklist, and not the
domain
> or the IP address my customer is assigned.
>
> In that case, I have options of
>
> a) switch smtp servers
> b) switch to google apps for the email serving.
>
> I favor Google apps because I can then cease to use Exchange (they have
> only
> 5 employees) and I do not have to worry about restoring Exchange in the
> event of a disaster.  I may have mentioned here that I recently installed
> two USB disks for alternating offs-site backups.  I also mentioned that I
> installed TrueCrypt on the two disks.  All that works well, but I have to
> use Veritas BackupExec to backup the Exchange folders and I fear having to
> do a restore of that stuff.
>
> Is this the golden opportunity to move the email off exchange and onto
> Google Apps?
> If so, they may opt to continue to use Outlook as the mail client, which
is
> fine.
> However, what about calendars.  Has anyone here used Outlook as a email
> client and attempted to interface the calender of outlook to the Google
App
> Calendar?
>
> TIA for input and comments.
>
> Mark
>
>
> So that leaves me with a few options
>
> On 5 February 2010 18:45, Jim Lawrence <accessd at shaw.ca> wrote:
>
> > It is possible that they got themselves blacklisted but ISPs use as much
> > content appraisal to decide whether something is spam or otherwise. Some
> of
> > the criteria are:
> >
> > 1. A large batch of emails being sent being identical or almost
> identical.
> > That can be gotten around by as little as adding the recipients name to
> the
> > content of each email.
> > 2. Particular content that says of implies drug or sexual content. I
have
> > had mail rejected that had three 'X' in a row. The mere mention of
> children
> > or youth can be a trigger. Then there is the possible mention of money
> > which
> > can also be a trigger. (Check their standard emails to see if there is
> any
> > possibility that their messages could misinterpreted.)
> > 3. Very plain emails, ones without pictures or images or any
professional
> > layout imbedded may be considered suspect...or subject lines or body
> > content
> > that may appear coded.
> >
> > Other possibilities are that some computer within an organization may
> have
> > become compromised at one point and ended up being used as a zombie.
This
> > could get the whole address range blocked. Maybe someone at the site has
> > been using the system to do load porn.
> >
> > If you suspect that the client is blacklisted you could check their
> various
> > main IPs against the following site:
> >
> >
>
>
http://www.mxtoolbox.com/blacklists.aspx?AG=GBL&gclid=CNyq8dzr258CFQYXagodlC
> > DUGQ  (watch for wrap...) If some of their IPs are found to be on any
> > blacklist it will take a number of phones call to get their good name
> > reinstated.
> >
> > HTH
> > Jim
> >
> >
> > -----Original Message-----
> > From: dba-tech-bounces at databaseadvisors.com
> > [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Mark Breen
> > Sent: Friday, February 05, 2010 1:24 AM
> > To: Discussion of Hardware and Software issues
> > Subject: [dba-Tech] Seeking your advice regarding false positives for
> spam
> > lists
> >
> > Hello All,
> >
> > I have a customer with six employees.  They are a government linked
> > childcare related organisation.  Their primary role in life is to
> dispense
> > funds to local pre-school child care businesses here in Ireland.
> >
> > They have been noticing that they often get told that their emails were
> in
> > the spam folder of their recipient.
> >
> > I did some tests yesterday sending from their email addresses to a few
of
> > my
> > gmail accounts and all of their emails went to google's spam folder.
> >
> > Could they have gotton themselves onto a so called black list?
> > Do such things really exist and is it really so easy to get on one of
> these
> > lists?
> > I have to presume that if they exist and if you get on one, there is no
> > easy
> > way to get off such a list?
> > If so, what do you suggest?  Register a similar domain name and cease
use
> > of
> > the old domain name?
> >
> > Thanks for your suggestions and comments.
> >
> > Mark
> > _______________________________________________
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