* Amira Othman <a.oth...@cairosource.com>:
> Hi all
> 
> I want to send mails to all users I have in my database and I am using
> postfix-2.3.3-2.3.el5_6. I am afraid that ISPs consider me spammer and add
> me to black list.Any one can suggest to me where to start to send mass mails
> and how to be protected from being considered spammer at ISP

Your ISP would be a start.

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebra...@charite.de | http://www.charite.de
            

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