It's always a good idea to benchmark your email communications' performance against the past performance of your emails as well as the performance of other organizations. This will help you gauge your success and to communicate it within your organization.
M+R produces an excellent yearly, qualitative benchmark report that can be found here. We recommend using reports like these to measure your success in advocacy and fundraising emails against those of other organizations.
You should also consider the past performance of your email campaigns when setting your goals. You can learn more about defining your own benchmarks in the CQ Connectivity webinar below: