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Atomic SMTP Server features

SSL connection support

Secure SSL connection is used to send safe email messages. In order to send bulk mailings using SSL, you need to select the current connection type in your bulk mailer program settings and specify the SMTP server mail parameters.


DKIM support

We recommend generating and using a DKIM signature when sending mail via the SMTP server. DKIM means a cryptographic signature for the sender's domain name. Thus, the company can be clearly identified and sender authenticity can be confirmed.


SPF support

If you really want to increase deliverability of email messages sent from your domain, you can use SPF entries. This is necessary to reduce the possibility of messages from your domain being delivered into spam folders. You can create SPF entries using different registrants. For example, see the detailed instructions on specifying SPF entries at http://www.godaddy.com. We recommend using SPF entries because they can improve a newsletter's deliverability and your sender reputation to both mail services and recipients.



Atomic Mail Sender fully integrates with almost any third-party external SMTP server that you decide to use for sending mass mailings. The integration process includes copying data from the SMTP settings and pasting them into the program. SMTP settings data include your personal login and password to access the SMTP server, and server address and port number.


Report generator

After you start sending the email campaign messages, your bulk mailer shows the delivery report (the progress, ‘good’ and ‘bad’ addresses) in a real-time mode.

You can review additional tracking information in the SMTP service member area (if you use such kind of a service). As for Atomic Mail Sender, the program is able to generate individual and bulk reports about email messages sending status, with the opportunity to save these reports into a local file.


Unlimited number of recipients

While working with Atomic Mail Sender you can add as many recipients email addresses as you need. Do not forget to specify the sending speed (quantity of email messages to send within hour). It’s important because some mail servers limit the number of messages a recipient can receive from one sender within an hour. If this limit isn’t set up your email campaign can be rejected and you become a spammer.


High-speed delivery

The program ability to support external SMTP servers allows a high sending speed – up to 100,000 emails per hour.


Helpful advice on improving mailing deliverability

Our experts will tell you the most effective ways to set up your Mail Sender with the SMTP server you use for improving your email campaign deliverability and increase the percentages of campaigns that pass spam filters.


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We are pleased to say something about the software offered by ATOMPARK. We have used several of the programs for quite some number of years. In all, it has been an excellent tool for our marketing support and hope to see only more new and improved features as we've experience just about each of all the years in which we've had a license to use your software.

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FLEET Services, Inc.,

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