Managing Effectiveness of Email Campaigns

A/B tests

Increase your open rates and CTR by testing up to 5 versions of the From: field, subject line, content, and delivery date/time. You decide about the test group size and winner choice method. The system enables automatic or manual dispatch of the winning version, based on the stats for clicks, opens or conversions.

Frequency capping

Prevent your subscribers from being flooded out with messages by applying the frequency capping tool -– very handy with dynamic segments and complex event driven campaigns.

Configurable sending IPs

Choose IPs and their share in the sending volume individually for each mailing or message type (e.g. set 50% of the volume to be mailed through IP #1 and the remaining 50% to be sent evenly through remaining IPs).

Sending to lists and/or segments

Send messages to an unlimited number of lists and/or segments, and mix lists with segments. Automated deduplication will make sure no subscriber receives the same message twice.

Sending Time Optimization

Increase engagement metrics by sending messages at the best time calculated separately for each recipient. A proprietary algorithm analyzes each subscriber's recent email activity and estimates the best time of the day and day of the week for sending future messages.

Time Travel

Allows sending messages at each recipient’s local time based on their last location (i.e. 6am in every timezone). The current timezone is calculated based on the geolocation of subscriber’s last email-related activity.

Email rendering tests

Preview your emails in different desktop email clients (e.g. Outlook, MacOS, and Thunderbird), mobile devices (e.g. iOS, Android) and web-based clients (e.g. Yahoo, Gmail, and Outlook). They help to identify and remove all HTML code errors to achieve the best rendering in all popular email clients. Tests are additionally paid. Please consult your account manager for an optimal pricing. At the moment, the following email clients are supported:

  • AOL Mail *
  • Apple Mail 7 & 8
  • Gmail *
  • Google Apps *
  • Lotus Notes 8.5
  • Lotus Notes 8
  • Lotus Notes 7
  • Thunderbird
  • Outlook 2015 for Mac
  • Outlook 2013
  • Outlook 2010
  • Outlook 2007
  • Outlook 2003
  • Outlook 2002/XP
  • Outlook 2000
  • *
  • Office 365 *
  • Yahoo! Mail *
  • Android 4.0
  • Gmail (Android)
  • Gmail (iPhone)
  • (iPhone)
  • iPhone 6 Plus
  • iPhone 6
  • iPhone 5s
  • iPhone 5
  • iPad (retina)
  • iPad Mini
  • BlackBerry Text & HTML
  • Windows Phone 8
* Tests marked with an asterisk are available in 3 browser variants: Internet Explorer, Chrome, and Firefox.

Spam filter tests

Test email content with anti-spam rules used in popular spam filters (e.g. SpamAssassin, Gmail, Outlook, and Postini). They help to optimize content in order to decrease probability of filtering messages to the Spam folder.

Conversion tracking

ExpertSender allows tracking goals set for messages (e.g. conversions) by generating tracking pixels that can be embedded on webpages (e.g. purchase confirmation webpage). It also allows dynamic tracking of ROI associated with reaching these goals.


Optimize deliverability and minimize bounces by sending throttled messages to large numbers of subscribers. Our system gives you full flexibility with 1 hour granularity.

Suppression lists

Upload email/domain/md5 suppression lists. You can apply an unlimited number of suppression lists in 1 mailing. The system is designed to handle suppression lists with millions of entries each.

Newsletter pausing

Click to pause sending a message and adjust its content, if you spot typos. Then restore message's delivery with fixed content with a single click.

Our Services

ExpertSender™ is more than an email marketing platform. We also provide a range of complimentary consulting services. Click to learn the details.

Email Experience Council Email Sender & Provider Coalition Return Path Signal Spam SuretyMail IADB Accredited Pomorski Park Naukowo-Technologiczny
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