To remove inactive subscribers, segment the contacts who haven’t opened or clicked in the last 3 to 6 months, run one final re-engagement email, then unsubscribe or delete everyone who still doesn’t respond. Pruning inactive contacts protects your sender reputation and lifts your open and click rates.
Who counts as an inactive subscriber?
An inactive subscriber is a contact who has not opened or clicked any campaign within a set window — commonly 3 to 6 months, defined by your sunset policy. Keeping them inflates your list size but drags down engagement, which mailbox providers read as a quality signal.
Regularly pruning dead weight is core email hygiene — see how to keep your email list clean.
How to remove them in Mailpro
- Create a segment filtering contacts with no opens or clicks in your chosen window.
- Send one last re-engagement email inviting them to stay subscribed.
- Wait a few days, then narrow the segment to those who still didn’t engage.
- Unsubscribe or delete that segment to remove the inactive subscribers.
Related reading
Apply a sunset policy as part of your cyber-hygiene best practices to keep results high.
Mailpro and list hygiene
Beyond cleaning your list — send to people who want to hear from you
Mailpro’s segmentation and automatic bounce handling keep your list healthy, so every campaign reaches engaged contacts.