Email Marketing Software

This error usually occurs if your Internet Service Provider does not allow you to send direct mail. In this case you have to send mail via its mail server. To do that, please open Settings / Common Settings / SMTP and enter the address of your ISP's mail server there (see the screeshot below).

If you still have any troubles configuring Atomic Mail Sender, please contact our technical support.

See also other error types:

• Error 550, error 504
• Invalid DNS
• Transaction failed

How to get the full version of Atomic Mail Sender

To order Atomic Mail Sender, simply click the link below or go to this section to learn more about alternative payment methods. Also, before ordering, you can get the downloadable version of the program here.