Sendwithus analytics are specifically built to provide the most accurate email analytics possible. It’s our job to show you exactly what’s happening with each and every email you attempt to send to your customers.

Because of this, sometimes Sendwithus analytics do not align with ESP-level analytics – here are a few key points to keep in mind when comparing Sendwithus analytics to those reported by your ESP.

Unique vs. Totals

By default, all analytics in Sendwithus are unique, meaning we track re-clicks and re-opens separately. Some ESPs will include re-clicks and re-opens in their open and click rates by default.

Analytics per Email vs. Aggregated Analytics

Sendwithus generates a unique ID every time an email send is attempted, which allows analytics to be tracked back to specific templates and recipients. This also means that Sendwithus analytics are tracked back to send time. Some ESPs are only able to show aggregate events over a given time period.

For example: Consider an email was sent on Day 1, opened on Day 2, and clicked on Day 3.

Sendwithus analytics will show an email that has been sent, opened, and clicked – all on Day 1. ESPs will show the following:

  • Day 1: sent event, no open event, no click event
  • Day 2: no sent event, open event, no click event
  • Day 3: no sent event, no open event, click event

This means Sendwithus gives you the true performance of your emails. In the above example, if someone was to analyze events on only Day 2 and 3 with an ESP, it would show open and click events despite no emails being sent on those days.

Total Sends vs. Successful Sends as Denominator

Sendwithus uses all attempted sends as the denominator when calculating percentages for open and click rates. Some ESPs will remove bounces, spam reports, and unsubscribes from the denominator, which can lead to artificially inflated analytics.

For example, an attempt to send 10 emails were made. 1 of them bounced, 1 was reported spam, and 5 were opened:

Sendwithus would show an open rate of 50% (5 opens/10 total sends) ESPs may show an open rate of 62.5% (5 opens/8 successful sends)

Previous Unsubscribes

Similar to the previous point, some ESPs will also remove any emails not sent due to prior unsubscribes or already existing on an established blocklist, artificially decreasing the denominator and inflating analytics when calculating percentages. As mentioned above, Sendwithus uses all attempted sends as the denominator, giving you an accurate picture of your deliverability.

For example, an attempt to send 10 emails. 1 was not sent due to a previous bounce, 1 was not sent due to existing on an unsubscribe list, and 5 were opened:

Sendwithus would show an open rate of 50% (5 opens/10 total sends) ESPs may show an open rate of 62.5% (5 opens/8 successful sends)

Timezone

All Sendwithus analytics are in UTC, which sometimes causes small differences in numbers.