Email Subscribe Button

I’ve been looking endlessly for a plugin I can install so visitors can enter their email address on my blog and subscribe via email for new posts. I’ve seen this on just about every blog out there, usually near the RSS feed but can’t find anything to set it up. My RSS feed works fine but can’t find an email subscribe to go with it.

Can anyone recommend a plugin for this feature that would allow new posts to be emailed to those that subscribe by email? I feel like it’s probably something simple that I’m overlooking since just about every blog has this feature, but would appreciate any help. Thank you.

Amar