6 Best Mass Email Sender Platforms With High Email Deliverability

According to Statista, nearly half of all emails (46.8%) go to the spam folders. This percentage can potentially increase, especially while handling bulk emails.
Mass emails generally have a reputation for triggering spam filters, and even more so if you haven’t warmed your email-sending domain.
However, that doesn’t mean you must stop sending bulk emails altogether. With the right email marketing platform and email security best practices, mass emails can be an effective way to reach more people and increase sales.
With countless options available, it could be overwhelming to find the perfect platform with the right services and, more importantly, high email deliverability rates (the ability of your emails to reach subscribers’ primary inboxes).
Here are the 7 best mass email sender platforms known for their high inbox placement rate and robust features to help you pick the front-runner.
What are Mass Email Services?
A mass email service is a platform that allows you to send large volumes of emails to multiple recipients at once. These services are typically used to send marketing newsletters, promotional emails, or general broadcast messages.
Mass email service platforms provide personalization and automation tools to send large volumes of emails without having to do manual work each time you send an email. They also possess other key features, such as built-in email campaign templates and list management tools.
Key Features of the Best Mass Email Sender Software
Whether it’s announcing new products or sharing important company updates, a best mass email sender platform has the right tools and unique features.
Their key features include:
- Bulk email sending: The ability to send an email to a large subscriber group simultaneously.
- Email templates: Pre-built campaign templates to speed up the process and deliver professional-looking emails.
- Email list management: Tools to segment and manage lists based on different criteria, such as psychographic segmentation, demographic segmentation, and behavioral segmentation.
- Automation: Features to automate email campaigns based on customer actions such as signing up for newsletters or abandoning shopping carts.
- Analytics and reporting: Reporting tools to track email open rates, click-through rates, conversion rates, and other relevant email campaign metrics.
- Personalization: Options to personalize emails with recipient names, interests, and other relevant data.
- Compliance: Built-in tools to ensure compliance with email marketing regulations such as GDPR and CAN-SPAM Act.
Our Criteria for Choosing the Tools
The list of best mass email sender tools is handpicked after thorough research prioritizing the following features:
- Email deliverability rate,
- Automation,
- Segmentation,
- Analytics and reporting,
- Other exclusive features.
Most of the platforms on the list offer a free trial for the first 30 days or so. After that, you will likely need to upgrade to the paid plans to access all their features. Specific platforms can charge clients for their migration services as well.
We recommend thoroughly researching the tool before settling on an option.
Campaign Refinery does not offer a free trial and it’s for a good reason — we’re laser-focused on providing the highest email deliverability rate and work only with serious and responsible email senders. All clients go through a strict vetting process to ensure compatability and adherence to email marketing regulations.
Best Mass Email Sender: An Overview
The table below will give you an outline of the mass email services we’ll be covering in detail below.
S.NO | Mass Email Service Platform | Uniqueness |
---|---|---|
1. | Campaign Refinery | It offers the highest email deliverability rate on the market |
2. | Brevo | Has Integrations with several e-commerce platforms |
3. | Omnisend | It offers email marketing, SMS, and landing page builder |
4. | Constant Contact | Email automation and social media integration |
5. | ActiveCampaign | Its user-friendliness, automation, and affordability |
6. | SendGrid | It provides robust infrastructure and advanced analytics |
Let’s look at them in detail.
1. Campaign Refinery: An All-in-One Email Marketing Platform

Campaign Refinery is among the best mass email sender tools for high deliverability and sophisticated features. Our high-speed email-sending engine, coupled with strict authentication protocols, helps us maintain the highest email deliverability rate on the market.
Our dedicated deliverability team closely monitors clients’ email-sending habits and promptly addresses deliverability issues to keep the sender reputation intact.
Clients noticed a 6x increase in inbox placement rates as soon as joining us.
Our platform is intuitive, with a user-friendly dashboard that is easy to navigate and helps create email campaigns in just a few clicks. Our robust analytics dashboard provides a birds-eye view of your mass email performance and helps you refine emails accordingly.
Above all, clients can send email campaigns to unlimited contacts and clean email lists by purchasing a set of credits. This means you can grow your email list without having to pay extra.
Learn more about our Campaign Refinery’s support and pricing in detail.
Key Features of Campaign Refinery
Our other exclusive features are:
- An automatic email list cleaning tool: Our integrated list cleaning tool swipes out harmful and inactive email addresses, keeping your email lists healthy and clean. This also contributes to higher inbox placement rates and better email sender reputation.
- Engagement rewards: This feature lets clients set points for each action, such as opens and clicks subscribers take on their emails. Each point can then be converted into downloadable resources or VIP access for email subscribers.
- Sophisticated segmentation: The tag-based segmentation allows users to directly tag a customer as soon as they open the email or start a sequence with tagging.
- Campaign template library: Choose from an array of pre-built email campaign templates to make your mass emails more attractive.
- Personalized dynamic fields: Use the dynamic fields to hyper-personalize email content and deliver relevant offers and deals.
- Audience groups feature: In case you need to send the same email campaign to multiple customer segments, our latest audience groups feature can help.
- Transparent pricing: Use our credit system to purchase as many credits in bulk and use them to send emails, clean lists, or perform other actions.
Campaign Refinery Pricing
Campaign Refinery’s plans start at $99 per month, inclusive of all premium features, access to an email deliverability consultant, and 24/7 customer support. Users get 50,000 credits to start with and can purchase extra based on their needs.
We vet all our clients to assess compatibility and work with serious and responsible email senders only. There is no free trial because we believe in accommodating quality senders who adhere to email marketing best practices.
2. Brevo: A Versatile Email Mass Sender

Brevo, formerly known as SendInBlue, has emerged as a strong contender in the mass email services market. The platform is best known for its ease of use, assisting newcomers in email marketing to plan and execute email campaigns effortlessly.
In addition to email marketing, Brevo supports SMS and Whatsapp campaigns and offers a sales CRM and landing page builder.
It offers features like a drag-and-drop email builder, automation workflows, and detailed analytics to optimize mass email campaigns.
The platform also closely monitors email-sending and validates emails to keep users away from spam. Brevo claims to deliver 99.98% of emails in under 20 seconds.
Its bulk email services offer 300 emails per day, which makes it a cost-effective solution for small businesses or solopreneurs.
Key Features of Brevo
At its core, Brevo is an email marketing platform, but it offers the following additional features:
- Customizable email templates: Users can choose from its 40+ email templates and use the drag-and-drop feature to use email elements such as buttons, text, or special characters.
- Customizable subscription forms: The bulk email sender allows users to create customized sign-up forms and embed them in emails or share them on social media.
- Quick contact imports: If you’re switching from another provider, Brevo accepts Excel, .csv, .txt files. Clients can also use the custom integration feature to import contacts from another CRM or CMS.
Brevo Pricing
Brevo is free for up to 300 emails per day. The paid plans start from $9 for 5,000 emails per month. Customer support and automation features are available only on the paid plans.
Businesses requiring unlimited contacts, advanced integrations, and exclusive features, can get a custom price quote.
Still not satisfied? Check out Brevo alternatives with similar features and functionalities.
3. Omnisend: A Comprehensive Mass Sender and E-commerce Marketing Platform

Omnisend is an email services platform focused on bulk sending for e-commerce businesses. It offers integrated SMS and email marketing campaigns, helping clients engage shoppers wherever they are in the buyer’s journey.
The platform provides unlimited segments that update in real time to help users group audiences based on shopping behavior and campaign activity.
Users can connect to popular e-commerce tools such as Shopify, Bigcommerce, and Woocommerce. In summary, Omnisend has many e-commerce features, especially the product recommender tool, which automatically adds new items or best sellers to your emails.
Key Features of Omnisend
Omnisend goes beyond emails, integrating multiple support channels into its platform, such as:
- Email and SMS automation: Omnisend offers advanced automation tools for e-commerce businesses, allowing for personalized, trigger-based, and SMS workflows.
- Campaign booster: This feature automatically resends email campaigns to customers who haven’t opened or clicked on them initially.
- Reporting and analytics: The platform provides updated and sorted lists of the user’s best-performing activities. The dashboard also provides an omnichannel view of activities in the dashboard.
Omnisend Pricing
Omnisend is free for businesses that are exploring options or starting out. The standard plan costs $16 per month for 500 contacts. Their pro plan starts at $59 per month for 2,500 contacts and unlimited emails.
4. Constant Contact: A User-friendly Mass Email Services Platform

Constant Contact is one of the oldest email marketing platforms known for its simplicity. The platform is well-suited for non-profits and small businesses looking to build strong customer connections.
The ESP offers a user-friendly interface that makes creating emails effortless, even for those without technical knowledge. It offers a vast email template library, a landing page builder, and social media marketing tools to connect and schedule posts.
Users struggling to come up with persuasive email content can make use of its AI-assisted writing. The platform also allows clients to set up and send drip campaigns and autoresponders. Apart from this, the tool gives users a subject line A/B tester and 300+ integrations catering to both marketing and sales needs.
Constant Contact maintains better email deliverability rates compared to other popular ESPs such as Mailchimp and ConvertKit.
Key Features of Constant Contact
Constant Contact is best known for its user-friendly interface, but the platform can do more than that:
- Straightforward analytics: The platform tracks common metrics such as open rates, click-through rates, conversion rates, and unsubscribe rates.
- Strict spam policy: Constant Contact regularly monitors spam reports of over 0.1%, which could explain its consistent email deliverability rates.
- Multi-channel customer support: Users can connect via chat, phone calls, or email support.
Constant Contact Pricing
The ESP offers three pricing tiers, namely, Lite, Standard, and Premium. Lite starts at $12 monthly and is based on the number of contacts. So, if you have a larger contact group, the pricing could significantly increase.
The highest pricing tier is the Premium plan, which starts at $80, with access to automation, segmentation, and other tools.
5. ActiveCampaign: A Personalized Mass Email Sender

ActiveCampaign goes beyond traditional email marketing and emphasizes personalization and automation functions. Its core focus is on customer experience automation to engage and connect people across customer journeys.
The bulk email service can also be used as a CRM system or combined with email marketing. The platform aims to be the go-to source for lead generation, customer management, sales, and marketing.
Users can utilize the ‘Predictive and conditional’ content to send one email campaign that automatically adapts based on customer data. In addition, senders with bulk email needs can use the ‘Automate with tags’ feature to assign various attributes to email subscribers.
ActiveCampaign reviews can provide more insights and help you pick the right mass email platform.
Key Features of ActiveCampaign
ActiveCampaign aims to perfect the email campaigns before they are sent out with the following features:
- CRM: ActiveCampaign has a built-in CRM that allows users to manage interactions and track information.
- Marketing automation: Clients can create campaigns based on customer behavior and track website analytics to improve existing campaigns.
- Live community: Mass email senders can share tips and learn from other ActiveCampaign users.
ActiveCampaign Pricing
The pricing starts at $15 per month for 1000 contacts. The ‘Plus’ plan starts at $49 per month and can go up to $145 per month on the Enterprise plan.
If you’re looking for more affordable mass email sender platforms, consider reviewing ActiveCampaign vs. Mailchimp to find a better fit.
6. SendGrid: Cloud-based Mass Email Sender

SendGrid is a scalable bulk email services platform with in-house email infrastructure. Clients can start to use the cloud-based platform without having to build and maintain their own email systems.
Its users praise the platform for its simplicity and customizable modern templates. The ESP also prides itself on high email deliverability and 24/7 tech support. It offers domain authentication, compliance, and deliverability coaching to achieve optimum inbox placement rates.
Another popular feature is the mobile-responsive email templates. Users can scale their marketing by choosing from a variety of pre-built campaign templates and delivery optimization tools.
Key Features of SendGrid
SendGrid has dedicated deliverability experts who overlook your email-sending, in addition to the following features:
- Email editor: The editor helps users create visually appealing emails even without coding experience.
- Scalability: SendGrid is best known for sending transactional emails. However, the platform can handle large volumes of sending without technical glitches.
- Email authentication: The platform helps protect the user’s sender reputation by implementing authentication protocols such as SPF, DKIM, and DMARC.
SendGrid Pricing
The bulk email service offers different pricing plans, starting from $0 to custom price quotes. The Email API and Marketing Plans are based on the number of contacts.
On the free pricing tier in the marketing plan, clients can store up to 100 contacts and send up to 6,000 emails. The advanced plan starts at $60 per month and includes a dedicated IP.
Sending mass emails requires constant monitoring of email deliverability to ensure smooth and consistent email marketing results. While all the above platforms offer good deliverability, Campaign Refinery excels in this area with the highest inbox placement rate on the market.
Accomplish the Highest Email Deliverability Rate on the Market With Campaign Refinery
Maintaining a good domain reputation, regularly cleaning email lists, and authenticating the email domains can maximize the probability of your mass emails landing in subscribers’ primary inboxes.
The more emails that reach customers, the greater the likelihood that they will take action.
At Campaign Refinery, we insist clients undergo mandatory domain authentication to maintain a stellar sender reputation. We also adhere to email security best practices to boost deliverability.
Our deliverability ecosystem consists of a high-speed sending engine and strict authentication protocols to enhance your mass email deliverability rates.
That’s not all, by prioritizing serious and responsible high-volume senders, we are able to promote a safe and secure platform for optimum email marketing results. All senders on the platform follow email marketing regulations and good sending practices. So, when you become a client, you’ll be amongst the top 1% of email senders.
All it takes is a quick consultation with our specialists.