Mailing list users.
Customers who send different newsletters, news on users list. should follow the následujícm rule. In the opposite case is the location of the SMTP server on the BlackList and limit its services.
According to the information from the cz may not send more than 5 messages in one smtp stream and from one IP address. Overall it may not send more than 179 reports for 3 minutes.
Important notice:
Sending e-mail from a Web server is carried out from different domains and forms. It is therefore necessary when sending to vote more time rozmenzí.