What a reply rate means
A reply rate is a field report about one list and one offer. It is not a score you can copy from someone else's thread.
A reply rate is the share of emails that got a human answer. It is useful when you know which inbox, which list, and which offer produced it. It is useless as a number copied from a forum and treated as a target for every campaign.
Open rate is a weaker signal than it used to be, because privacy features and image blocking change the count. Replies, positive replies, complaints, and bounces tell you more about whether the mail was wanted.
Count the replies you wanted
A reply that says “remove me” is a reply. It is not a win. Separate positive replies from everything else, and read them per inbox rather than as one blended rate across the workspace. A healthy average can hide one inbox that has gone quiet and is teaching the domain the wrong lesson.
People in public threads describe a positive reply rate around a few percent as a solid cold-email result these days. Treat that as a field report from other operators, not as a Sendblox benchmark. Your number moves with the list, the offer, and whether the note was relevant.
What to change when it falls
If replies fall, do not buy another domain first. Check whether the copy is one skeleton, whether the follow-ups add anything, and whether the list is people who have the problem you wrote about. Then check complaints and bounces on the quiet inbox.
A higher reply rate from a shorter, truer list beats a lower rate from a longer one. One email per contact, with one objective, is the change that usually matters more than a new subject-line test on the same template.
Write the rate down next to the list you used. When someone asks what good looks like, show that note. A number without the list, the offer, and the week is not a result you can manage.