Jim Lawrence
accessd at shaw.ca
Fri Feb 5 12:45:32 CST 2010
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 _______________________________________________ dba-Tech mailing list dba-Tech at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/dba-tech Website: http://www.databaseadvisors.com