A newsletter plugin connects your WordPress site to an email service, or in a few cases, sends the email itself, so you can turn site visitors into subscribers and subscribers into repeat traffic. Here are 10 worth knowing, including a few name changes since this list was first written. I’ve run at least half of these on real sites, and the thing nobody tells you upfront is that the plugin matters less than what happens after signup, deliverability, list hygiene, and whether anyone actually opens what you send.
Before the list: form plugin, sending service, or both
Most of the confusion around newsletter plugins comes from mixing up two different jobs. One is capturing the email address, a form on your site, a pop-up, a widget. The other is actually sending the newsletter and tracking who opened it, which requires either a dedicated email sending service or a plugin capable of sending at volume without your domain getting flagged as a spam source. Some tools on this list do both. Others, OptinMonster especially, only do the first and expect you to pair them with a real sending service.
Sending from your own WordPress server, rather than through a dedicated email service, is the mistake that causes the most frustration. Shared hosting mail servers get flagged by spam filters constantly, and once your sending domain has a bad reputation, even legitimate transactional emails, password resets, order confirmations, start landing in spam. If a plugin here sends through WordPress’s built-in mail function rather than through an API connection to a real email service, treat that as a warning sign, not a convenience.
1. Mailchimp for WordPress (MC4WP)
MC4WP connects your site to a Mailchimp account with pre-built form templates and a drag-and-drop editor, no coding required. Integrates with WooCommerce, Gravity Forms, and Ninja Forms for automated, triggered campaigns. Active, v4.13.1, updated within the last month.
The appeal here is maturity. Mailchimp has been the default email platform for small businesses for long enough that most integrations you’d want already exist, and MC4WP itself has years of compatibility testing behind it across WordPress versions and themes. Mailchimp’s own pricing shifted a few years back toward counting total contacts (including unsubscribed and cleaned addresses) rather than just active subscribers, which caught some long-running lists off guard, worth checking your actual contact count against current tier pricing before assuming your old plan cost still applies.
2. Newsletter
Newsletter sends emails from inside WordPress itself rather than routing through a separate service, with drag-and-drop design, behavior-based automation, and subscriber segmentation. Active, v9.3.1, updated within the last month.
This is the one exception to the “don’t send from your own server” caution above, and it’s worth explaining why. The plugin does support connecting to a real SMTP or transactional email service under the hood rather than relying on raw WordPress mail, which is what makes it viable for actual list sending rather than just a handful of test emails. If you set it up that way, connected to a service like SendGrid or Amazon SES rather than default WordPress mail, deliverability holds up reasonably well. Skip that step and you’ll see the same spam-folder problems as any other server-side sender.
3. Brevo (formerly Sendinblue)
Sendinblue rebranded to Brevo in 2023, same all-in-one email/SMS/automation platform. Pricing is based on emails sent rather than subscriber count, which favors large lists that don’t email often.
That send-based pricing model is worth sitting with for a second, because it inverts the usual calculation. A list of 50,000 people you email once a month can cost meaningfully less on Brevo than on a subscriber-count platform, while a smaller list you email daily can end up costing more. Model your actual send frequency against your list size before picking a platform based on subscriber-count pricing alone, the math doesn’t always go the direction people assume.
4. Kit (formerly ConvertKit)
Kit renamed from ConvertKit, and remains built specifically for creators and small businesses rather than large enterprises. Segmentation, automation, and landing pages are the core draw, priced by subscriber count.
What sets Kit apart from Mailchimp-style tools is the tagging model rather than a strict list structure. Subscribers get tags based on behavior, clicked this link, bought this product, attended this webinar, and automations trigger off tag combinations rather than which static list someone’s sitting on. It’s a genuinely different mental model for organizing subscribers, and creators who’ve used both tend to have a strong preference one way or the other once they’ve tried Kit’s approach.
5. MailPoet
MailPoet sends newsletters and automated emails from the WordPress dashboard, with abandoned-cart and welcome-series automation built in. Active, v5.34.2, updated within the last week.
MailPoet’s specific strength is WooCommerce integration, the abandoned-cart automation reads directly from WooCommerce order data without needing a separate sync step, and product recommendation blocks can pull live inventory into a newsletter template automatically. If you’re already running WooCommerce, this closes the gap between “we have a store” and “we send emails about the store” faster than connecting a general-purpose email platform and building that integration yourself.
6. Constant Contact
Constant Contact pairs email templates with list segmentation and, beyond email, social media and event management tools if you want one platform for more than newsletters.
It’s aimed at a slightly older-school small business audience than Kit or Brevo, think local businesses, nonprofits, event organizers, and the interface reflects that with more guided setup and phone support availability than some of the newer, more self-serve competitors offer. Worth it specifically if a live support line matters to you more than the marginal feature advantages of a newer tool.
7. HubSpot for WordPress
HubSpot‘s WordPress plugin adds site tracking, forms, and pop-ups feeding into HubSpot’s broader CRM and marketing suite, worth considering if you’re already using or considering HubSpot for sales and marketing beyond just email.
The free tier is genuinely usable for a small list, and the CRM connection means every subscriber’s page views, form submissions, and email opens live in one contact record rather than scattered across separate tools. That unified view is HubSpot’s actual pitch, not the newsletter feature specifically. If you don’t need CRM-level contact tracking, you’re paying (in setup complexity if nothing else) for a lot of infrastructure a dedicated email tool doesn’t require.
8. OptinMonster
OptinMonster is a lead-capture tool, not an email sender, pop-ups, slide-ins, and floating bars with A/B testing and exit-intent triggers, feeding whichever email service you actually send from.
Pair it with any of the actual sending platforms above rather than expecting it to replace one. Its value is in the capture mechanics specifically, exit-intent detection that catches a visitor about to leave, geolocation targeting so a visitor from a specific region sees a relevant offer, and page-level targeting so a pop-up on a product page differs from one on a blog post. Those capture-rate improvements compound over time in a way that’s easy to underestimate from a feature list alone.
9. Bloom
Bloom (Elegant Themes) is no longer sold standalone, it’s bundled into Elegant Themes’ membership plans starting at $89/year alongside Divi and Monarch. Worth factoring into the decision if you don’t already use other Elegant Themes products.
If you’re already running Divi as your page builder, Bloom effectively comes free with that membership, which makes it worth a look before paying separately for a dedicated opt-in plugin. If you’re not in the Elegant Themes ecosystem already, the bundle price is a harder sell purely for the opt-in forms, since it’s paying for Divi and Monarch alongside a feature you might only need from Bloom.
10. Sumo (now BDOW!)
Sumo rebranded to BDOW!, same pop-up and list-growth toolset. Active, v1.44, 10,000+ installs, but worth knowing before installing: reviews are mixed, with recurring complaints about performance and support response times.
Given those complaints, it’s hard to recommend over OptinMonster or Bloom unless price is the deciding factor and you’re prepared to test performance impact on your own site before committing. Run a before-and-after page speed check if you do install it, a pop-up tool that slows down your whole site is working against the exact conversion goal it’s meant to help with.
What actually drives newsletter results, beyond the plugin
Deliverability is the piece nobody thinks about until it becomes a problem. Every platform on this list handles the technical side, SPF, DKIM, DMARC records, authenticating your sending domain, but you generally have to set those DNS records up yourself or through your host, and skipping that step is why some newsletters mysteriously land in spam for a portion of subscribers while working fine for others. If your open rates look unexplainably low, check your domain’s authentication setup before assuming your subject lines are the problem.
List hygiene matters more than list size. A list of 2,000 engaged subscribers who open regularly outperforms a list of 20,000 where most addresses haven’t opened anything in a year, both on actual campaign results and on your sender reputation, since inactive addresses drag down engagement metrics that email providers use to decide whether your mail is wanted. Most of the platforms above have a re-engagement or sunset automation built in specifically for this, worth setting up rather than letting a list quietly bloat with dead addresses.
Send frequency is a genuine trade-off, not a solved problem. Emailing too rarely means subscribers forget why they signed up and mark your next email as spam out of confusion. Emailing too often burns out even engaged subscribers. There’s no universal right answer, it depends on your content and audience, but tracking unsubscribe rate alongside open rate over your first few months tells you pretty quickly if your current cadence is working.
GDPR and consent, worth handling properly
If any part of your audience is in the EU or UK, explicit opt-in consent isn’t optional, a pre-checked checkbox or an assumption that visiting your site implies consent to marketing email doesn’t meet the bar. Most of the platforms above have a GDPR-compliant double opt-in option built in, confirming the subscription via a follow-up email before adding someone to your active list, worth enabling even if you’re not specifically targeting EU traffic, since it also improves list quality by filtering out mistyped addresses and bot signups.
The unsubscribe link deserves the same care as the signup form. Every major platform here includes one automatically and won’t let you remove it, that’s a CAN-SPAM and GDPR requirement, not a platform choice, but where the trouble comes in is honoring it promptly. An unsubscribe request that doesn’t actually stop future sends, whether from a plugin bug or a manual export that missed the latest suppression list, is the kind of mistake that turns an annoyed subscriber into a spam complaint, and spam complaints hurt your sender reputation with every mailbox provider watching, not just the one subscriber who complained.
A realistic setup order, not the marketing-page version
Most sign-up guides for these tools start with “design your first campaign,” which skips the parts that actually determine whether your newsletter works. Domain authentication comes first, genuinely first, before you write a single subject line. Add the SPF, DKIM, and ideally DMARC records your sending platform provides to your domain’s DNS settings, most hosts have a straightforward interface for this even if you’ve never touched DNS before, and confirm they’ve propagated (usually within a few hours, sometimes up to 48) before sending anything beyond a test email to yourself.
Next is the actual signup form placement, not the design, the placement. A form buried in a footer captures a fraction of what a form placed after a genuinely useful piece of content captures, since the person reading has just experienced why your content is worth following rather than being asked cold. Test more than one placement rather than assuming the conventional “sidebar widget” spot is your best option, it usually isn’t.
Then comes the welcome sequence, not just a single confirmation email. A short automated series, three to five emails over the first couple of weeks introducing what your newsletter covers and pointing new subscribers to your best existing content, does more for long-term engagement than any individual regular send, because it sets expectations while a new subscriber’s attention is still highest. Every platform above supports this kind of automation; it’s just frequently skipped in favor of jumping straight to regular sends.
Combining a capture tool with a sending platform
A pattern that works well in practice: OptinMonster or Bloom for the on-site capture experience, since both handle exit-intent, geolocation, and page-level targeting better than the form builders bundled into most sending platforms, paired with Kit, Brevo, or Mailchimp for the actual list management and campaign sending. The capture tool pushes new subscribers straight into the sending platform through its native integration rather than storing them separately, so you’re not manually exporting and importing CSVs between two systems.
The reason this two-tool approach beats an all-in-one option for a lot of sites is that capture and sending are genuinely different disciplines. A pop-up tool built primarily for capture optimization, timing, targeting rules, A/B testing form variants, tends to outperform the capture forms bundled as an afterthought inside a sending platform, and the reverse is often true too, a dedicated sending platform’s automation builder is usually more capable than what a capture-focused plugin offers as a secondary feature.
Measuring whether it’s actually working
Open rate gets quoted the most but tells you the least on its own, since it varies wildly by industry and list size, and Apple’s Mail Privacy Protection has made open tracking unreliable for a meaningful share of subscribers who use Apple Mail, since it pre-fetches images regardless of whether the recipient actually opened the email. Click-through rate is a more honest signal of engagement, since it requires an actual reader taking action rather than a mail client auto-loading a tracking pixel.
Unsubscribe rate matters more than most people treat it. A spike in unsubscribes after a specific send tells you something concrete, wrong content type, too promotional, sent at a bad time, in a way that open rate alone won’t reveal. Track it per campaign, not just as a running total, so you can connect specific sends to specific reactions.
Revenue attribution, if you’re running WooCommerce or EDD alongside your newsletter, is the metric that actually justifies the time spent on this. MailPoet and Brevo both offer WooCommerce revenue tracking that ties a specific email campaign to specific completed orders, which turns “we sent a newsletter” into “that newsletter generated this many dollars in the following 48 hours,” a much easier number to defend when deciding whether to keep investing time in the newsletter at all.
Picking One
There isn’t a universally correct answer here, and anyone claiming otherwise is usually just describing what worked for their own list. What’s consistent across every platform, though, is that the tool matters far less than the discipline around domain authentication, consent, and a welcome sequence built before the first regular send goes out. Get those three right on any reasonably capable platform and the specific plugin choice becomes a lot less consequential than the comparison charts make it seem.
If you already run WooCommerce or a form plugin, MC4WP or Newsletter are the lowest-friction starting points, and MailPoet specifically if WooCommerce integration is the priority. If email is one piece of a bigger marketing push, HubSpot or Constant Contact cover more ground beyond just sending. If you’re a solo creator or small business focused on audience building specifically, Kit’s tag-based model tends to fit better than a traditional list structure. Everything else here fills a specific niche, worth matching to what you’re actually trying to solve rather than picking the biggest name.
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