9 TOP SMTP services with the best e -mail delivery? What tests say

Let us come into the list.

1. Sendlayer: WordPress native email delivery

Sendlayer I attracted my attention because it was created especially for WordPress users. This means that it was built with an understanding of the real e -mail problems with which we are confronted every day.

If you are a typical example of this, there are no complex configurations or confusing DNS data record. Sendlayer automatically generates your SPF, DKIM and DMARC data records for you.

So just copy and simply insert them into your DNS settings. This completely solved my Cloudflare headache.

In addition, you will not experience common authentication errors with which you want to pull out your hair. This is also possible due to the dedicated IP for basic plans.

In most SMTP services you pay premium prices for this function. However, Sendlayer gives you a clean IP address that you only use. This means that your e -mail call remains flawless.

In addition, you don’t have to worry about other users who send questionable content, as this does not affect your e -mail delivery prices.

After the setup, I experienced very few submission errors of the contact form and even less impact e -mails. I love how Bounce management also works automatically. E -mails for the password were also reset.

During my 30-day test period, I recorded a delivery rate of 99.2%.

Hard bounces will be removed immediately, while Soft Bounces repeat intelligently without annoying the recipient’s e -mail server.

In addition, the system warns you before you are sent to bad e -mail addresses and protect your reputation before problems begin.

The analytics dashboard from Sendlayer shows exactly where your e -mails are going. You can easily see delivery confirmations and open prices.

It is also perfectly integrated in WP Mail SMTP and WooCommerce. It also combines with popular shapes WpformsContact form 7 and impressive forms.

Why Sendlayer is my number 1:

• Sendlayer loosened my Cloudflare -authentication -album in a few minutes, while other services have undertaken hours of troubleshooting.
• With the dedicated IP of basic plans, you can record the reputation control at the company level without corporate prices.
• The most important thing is that it is the only SMTP service that I tested, the WordPress user really gets and fixes our specific e -mail headache.

Take a look at my detailed Sendlayer evaluation.

Start with sendlayer here.

2. SMTP.com: Established E -Mail infrastructure

SMTP.com has been delivering e -mails for 22 years. This is longer than WordPress. And like Sendlayer you can see and think about this experience and thoughts on every function offered.

First, your authentication system immediately impressed me because SMTP.com SPF, DKIM- und Dmarc setup takes over with clear instructions. They also give you precise DNS data records for copying and inserting them.

The IP reputation options also attracted my attention.

Although you can start with jointly used IPs, you have a good reputation and guarantee high e -mail delivery rates. In addition, you can upgrade you upgrade when you grow your volume.

This flexibility saved me before paying functions that I didn’t need yet, and made it possible for me to grow in my budget.

I tested SMTP.com on a top membership website because of the high daily notifications.

I liked how Bounce processing worked automatically and intelligently and the hard bounces were immediately removed.

The best thing about it is how soft bounces repeat at perfect intervals without overwhelming the recipient’s server.

The analytics dashboard offers you everything you have to see.

For example, you can display delivery rates, open the persecution and click on data, all of which are displayed in real time. In addition, the E -Mail protocols will help you to fix problems quickly.

I could see exactly why certain e -mails were bounced down or delayed.

SMTP.com integration works excellently with popular SMTP plugins and other WordPress tools. This makes the entire process easier if a setup assistant leads it significantly through every step.

The platform protection from SMTP.com is really noticeable.

You check new accounts manually to keep spammer away, which means that your IP call remains clean. As a result, your e -mails benefit from your established relationships with large e -mail providers.

Why SMTP.com rank #2:

• SMTP.com’s 22-year success record gave me the confidence that my emails would continue to work in the long term.
• With their flexible IP options, I can start small and scale without a switching provider. The most important thing is that your human support team actually understands the E -Mail delivery problems and contributes to solving them quickly.

Start with SMTP.com.

3. Brevo: Comprehensive E -Mail platform

Brevo used to be called Sendinblue before they were renamed. I have been using them for various customer projects for three years because it offers a generous free plan.

What makes Brevo special is how it combines SMTP services with marketing tools in a platform.

Your authentication suite covers all basics perfectly and makes it perfect for beginners. In addition, SPF, DKIM and DMARC setup are automatically carried out when you check your domain.

As with other TOP -SMTP services that are mentioned on the top of this list above, Brevo adds precise DNS data records. So you just have to copy and insert it.

The IP management strategy really impressed me in the test.

Brevo offers special IPs for paid plans and highly volume senders. But their jointly used IPs are well managed for smaller senders and guarantee high delivery rates.

This means that you benefit from Brevos established reputation from the start without paying for anything.

My favorite brevo function is automatic list cleaning.

One of the most frustrating things in e -mail marketing is to deal with hard bounces and inactive subscribers who pull down their availability.

But with Brevo, hard bounces are immediately removed from their lists and give up intelligently for 36 hours.

With this place, the system is also dealt with spam complaints without lifting a finger.

Apart from that, real-time monitoring showed exactly what happened to every email. You can immediately analyze provision confirmations, bounce grounds and commitment data in the dashboard.

The WordPress integration works several options so that you can select the simplest method for you.

You can use the official WordPress plugin or manufacture via WP Mail SMTP. Both methods are super simple.

Brevos compliance protection really stands up.

You have no tolerance for spam with immediate account settlement for violations. In addition, GDPR tools help you to comply with conformity areas that you can legally collect.

This protects both your business and your reputation.

Why Brevo #3:

• Brevo’s combination of SMTP Liefer and Marketing tools gave me everything in one platform instead of juggling several services.
• Her lightning-fast delivery speed impressed my customers when time-critical emails arrived almost immediately.
• The most important thing is that automatic list hygiene saves me hours of manual work while I kept my sending call flawless.

Take a look at this updated Brevo evaluation (formerly Sendinblue).

Start with Brevo here.

4. Mailgun: E-mail infrastructure oriented

Mailgun is built for people who love technical control and advanced functions. I have been using them for over two years for customers who need serious E -Mail stream.

What Milgun makes something special is the focus on developers and scalability.

For example, your authentication framework with comprehensive support for the SPF, DKIM- and DMARC support goes deep. The Setup process gives you complete control over every setting.

The good news is that you explain exactly what every authentication protocol does.

The IP management options really impressed me during the tests with a high volume.

You can start with common IPs that work excellently for smaller websites. But while they are growing, you can switch to dedicated IPs, which gives you complete reputation control when you are ready.

I was also impressed by the automatic IP warm -up that gradually and intelligently builds up. Small e -mail stacks are first sent and then the volume increases over time to increase the availability.

The management of the delivery failure pursues a different approach.

Mailgun automatically categorizes the bounces according to different types. In addition, soft hops with intelligent timing are taken over.

The system also processes spam complaints from large e -mail providers without doing anything.

In addition, your cloud-based system automatically scales when your email volume jumps.

WordPress Integration works excellently about your official plugin.

The HTTP -API integration is more reliable than conventional SMTP, especially when hosting.

Why Milgun #4:

• Milgun’s developer approach gave me the technical control that I needed for complex customer projects with which basic SMTP services could not process.
• Her HTTP -API integration solved reliability problems, which I had on shared hosting with conventional SMTP.
• The most important thing is that the functions for machine learning have helped my customers get better opening rates from me without additional work.

Start with mailing here.

5. Sendgrid: AI improved email platform

Sendgrid Processes over 148 billion e -mails with artificial intelligence to optimize the delivery every month.

What surprises me most is the ACE system (automated communication environment) that uses machine learning to automatically improve the delivery rates.

This authentication system works seamlessly with the domain check that SPF and DKIM data records immediately sets up. You can also link branding and use all tracking links your domain instead of sendgrid.net.

This consistency builds up with e -mail providers.

Sendgrid has a unique way of managing IP reputation compared to its competitors. It automatically grouped the best senders into jointly used IP pools within 24 hours.

Higher plans with dedicated IPs have an automatic warm -up process. As a result, e -mails immediately receive a thrust from other good senders.

The Dashboard for Servitability Analysis shows the performance that is interrupted by large e -mail providers such as Google Mail and Yahoo. You can see exactly how your e -mails are carried out with every provider.

In addition, the AI ​​continuously learns from sending patterns to optimize future campaigns.

Why Sendgrid rank #5:

• Sendgrid’s AI system automatically improved my customer’s delivery rates without manual optimization work.
• The provider-specific analysis helped me to understand exactly why certain emails did not reach any mail users and resolved the problems.
• The most important thing is that their massive benchmark and machine learning enabled my smaller customers the same delivery locations as companies.

Start with Sendgrid here.

6. Rubber stamp: Transaction -E -Mail specialists

Rubber stamp Focused exclusively on transaction -e emails. What distinguishes the postmark is your obsession with speed and reliability.

Your authentication uses 1024-bit DKIM key that prove that your emails have not been manipulated during delivery. But despite the focus on speed, they still keep things easy.

For example, the setup only requires simple DNS records that you provide in your dashboard. In addition, its custom Return Path setup automatically hands over the SPF authentication.

Like many SMTP services on this list, I was really impressed by the IP strategy management of postal works during the test.

Your jointly used IP pools keep an excellent reputation with careful user screening. In addition, they take care of all IP warming and reputation management for you.

This means that you benefit from your established relationships with large e -mail providers.

The ultra-strict quality control of postal works keeps your reputation of the platform flawless. You check all new accounts manually and keep a maximum of 0.10% spam complaints.

Why the postmark #6:

• The exclusive focus of postal works on transaction -e emails led to the critical resetting and confirmation confirmations of my customer had never failed if the users needed the most urgently.
• Their delivery speeds under second branch impressed customers who were able to see e-mails almost immediately after clicking on sending.
• The most important thing is that their strict quality standards caused me to trust me that the delivery rates would remain high in the long term without call worries.

Start postmarks here.

7. Amazon ses: Cloud-scale-e-mail infrastructure

Amazon ses Runs on the same infrastructure that supplies the massive e -mail system from Amazon.com. What makes SES special is the combination of corporate functions with incredibly low costs.

Your authentication support covers SPF, DKIM and DMARC with a simple setup through the SES console. In addition, the DNS data set system automatically generates for the domain check.

Since it is an Amazon product, Shared IPs is ideal for inexpensive shipping with an AWS-managed reputation. In addition, dedicated IPs offer complete control for highly volume senders.

Why Amazon Ses #7:

• Amazon Ses saved my highly volume customers hundreds of dollars a month compared to other companies SMTP services and at the same time provided the same reliability.
• The managed dedicated IP option automatically solved complex warm -up processes, which took weeks to process manually.
• The most important thing is that the global infrastructure has consistently delivered to my international customers worldwide without building several regional providers.

Start with Amazon ses here.

8. Google WorkSpace: e -mail for company companies

The Google WorkSpace uses the massive infrastructure of Gmail Mail, which processes billions of e -mails every day.

Your authentication framework supports SPF, DKIM and DMARC with a comprehensive setup by the administrator console. In addition, the 2048-bit DKIM keys offer maximum security for checking the email.

Google manages dynamic IP pools in its global network and automatically edit IP reputation management. This means that you immediately benefit from the Trusted sender status of Gmail Mail.

The bounce management provided detailed error codes for any delivery error. I like the integration with Google Postmaster -Tools Domain Reputation and Spam rates.

In addition, the E -Mail protocol search has followed me for up to 30 days.

WordPress integration works via several plugins, including WP Mail SMTP with OautH 2.0 authentication. The setup eliminates the password requirements for expanded security.

The Google Workspace also offers several aliase with which you can send in your domain from various addresses.

Why Google WorkSpace #8:

• The Google WorkSpace immediately gave my Enterprise customer credibility from e -mail provider, since the call from Google Mail opened doors that other SMTP services could not.
• The Oauth 2.0 authentication removed the headache of password security and at the same time provided spherical wordpress integration.
• The most important thing is that customers loved the e -mail delivery to be integrated into their existing Google tools instead of managing another separate platform.

Start Google Workspace here.

9. Translation: Marketing-oriented email platform

Deputy ponse combines SMTP delivery with comprehensive marketing automation in one platform.

Your authentication standards cover SPF, DKIM and DMARC with automatic and manual furnishing options. Apart from that, the system contains authorized mail servers by simple DNS data records.

It offers jointly used IPs with a defined reputation for most WordPress users. In addition, Getresponse Max Dedicated IPs offers complete sender control.

The supported IP -Warmup service gradually increases the sending of volume, while joint pools are used for excess e -mails.

For an even better delivery, the Hydra AI system monitored its shipment patterns and prevented calls from preventing problems before the start.

Why Detresponse rank #9:

• Presponse combination of SMTP delivery and marketing automation removed my customers to manage several platforms and integrations.
• The Hydra Ai system recorded potential call problems before they influenced the delivery rates and saved me from manual monitoring work.
• The most important thing is that the perfect timing ki automatically improved the open prices by sending e -mails when each subscriber was most likely to be involved.

Start with transsponse here.

This is for my list of the best SMTP services with the highest e -mail delivery prices. Let us see what we should look for when we consider an SMTP service.

How to select the right SMTP service for your WordPress site

The selection of the right SMTP service depends on your specific WordPress requirements and technical comfort. Here is what I think about when I recommend tools:

• E -mail volume:
• Technical level:
• budget:
• WordPress focus:

Maximize your e -mail delivery prices

Getting the right SMTP tool is only the first step. The real secret for the consistent post -entrance provision is to pursue proven best practices that I have learned through years of testing.

• Authentication structure: Always configure the SPF, DKIM and DMARC data records exactly like this
• List hygiene: Remove hard sayings every 3 months and clean inactive subscribers to maintain the sender’s reputation
• Content optimization: Avoid spam trigger such as “free”, “guaranteed” and excessive exclamation marks; Keep the text-to-image relationships balanced
• Send consistency: Keep regular shipping plans and avoid sudden volume tips that trigger the ISP suspicion
• Monitor performance: Track delivery rates, open prices and spam complaints weekly; Take questions before you hurt the reputation
• Test everything: Send test -e emails to Google Mail, Yahoo and Outlook in front of important campaigns

You can find detailed set -up instructions with screenshots and error removal tips in our comprehensive instructions for configuring SMTP in WordPress, which leads you through the entire process.

That’s it for me. If something is unclear, read the frequently asked questions below.

FAQs: SMTP services with the highest e -mail delivery rate

Last judgment: Which SMTP service is the best for the e -mail delivery is

With every contact form submission that remains unanswered, and every order confirmation that never arrives costs real money and customer confidence.

From my extensive tests, Sendlayer For most WordPress users with its dedicated IPs, first place for basic plans and WordPress-specific optimization. SMTP.com becomes second with the proven 22-year reliability and excellent support for human support.

While Brevo takes third place for users who want marketing automation in addition to the SMTP delivery.

Remember to select the SMTP service that meets your requirements and your budget. Then properly set up the authentication and monitor your delivery rates.

Your customers will thank you if your e -mails actually arrive and you will sleep better if you know that the communication of your WordPress site works reliably.

Resource of resources

To ensure that you have all the information you need to improve your e -mail delivery and your e -mail marketing, I have created a quick resource hub for you.

Ready to select the perfect SMTP service for your WordPress site? These resources will help you implement, optimize and scale your E -Mail strategy via only delivery.

From automation to the listing, we have covered your complete e -mail marketing trip.