What are the best filters for identifying unengaged contacts in Brevo, focusing on email opens?

Email marketer from Reddit suggests using a segment of contacts who haven't opened an email in the last 3-6 months as a starting point for identifying unengaged contacts in Brevo.

Email marketer from Quora explains that a good filter is based on email opens. The email marketer shares that they use at least 6 months of no opens as a threshold for unengaged. A separate engagement campaign can then be run to try and re-engage them.

Email marketer from Email Geeks explains that generally, it's better to base engagement on events (click, pageview, sale, purchase, etc) rather than opens. Suggests using a filter like `Last Event at` `before` `12 months ago`.

Email marketer from Digital Marketing Expert Blog recommends combining email opens (or lack thereof) with other engagement metrics like website visits or purchases to create a more accurate picture of unengaged contacts.

Email marketer from MarketingOverCoffee Forum shares that list cleaning using lack of opens is a good idea but suggests also tracking soft and hard bounces at the same time for best results.

Email marketer from EmailGeeks explains that if you are using opens to filter, make sure you are aware of the iOS privacy changes and that the opens metric is therefore less reliable than it was.

Email marketer from Email Marketing Pro Blog suggests defining a threshold for open rates (e.g., haven't opened an email in 90 days) and creating a segment of contacts who fall below that threshold.

Expert from SpamResource explains that identify unengaged users based on lack of interaction (opens, clicks) over a defined period (e.g., 6-12 months), then suppress or remove these contacts from future mailings to improve your sender reputation.

Expert from Word to the Wise explains that relying solely on opens is becoming less reliable due to privacy changes (like Apple's Mail Privacy Protection). They recommend focusing on clicks, conversions, and other engagement metrics that indicate genuine interaction with your emails to identify unengaged contacts.

Documentation from Brevo Help Center shares you can utilize contact scoring based on email opens. Assign points for opening emails and then filter contacts based on their total score to identify those with low engagement.

Documentation from Brevo Help Center shares advanced segmentation using a combination of 'Email Activity' (opens) and other criteria (e.g., time since last purchase, website activity) to refine the unengaged contact definition.

Documentation from Brevo Help Center explains that you can create a segment based on 'Email Activity' and filter by 'Opened' or 'Not Opened' within a specific timeframe (e.g., 'Not Opened' in the last 6 months) to identify unengaged contacts based on email opens.