In the “SendStatus” column, I get the error message “SEND ERROR error opening connection” or “SEND ERROR error reading or writing on network socket.” What does that mean and how do I fix it?
Some firewall programs, such as Norton Internet Security, by default prevent you from using any ports on your machine, including the standard SMTP port 25 used by CustomMailer. Usually these programs can be configured to allow certain ports to be accessed by specific programs. In particular, Norton Internet Security implements this with a set of “rules” and comes with a default set of rules that automatically allow certain popular programs like Outlook Express to access their required ports. To get CustomMailer to work under Norton Internet Security, click on the personal firewall link, click on the “Configure” button, click on the “Programs” tab, then find the CustomMailer program (CustomMailer-jrew.exe) in the list and enable it to be used through the firewall.
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