High-volume communication has always been a cornerstone of strong marketing. For many teams, email remains the default channel because it offers a combination of:
- Scale
- Felxbiility
- Analytics
But as inbox competition intensifies, email campaigns face volatile deliverability. In fact, 1 in 6 marketing emails fails to reach the inbox, limiting campaign performance before the audiences even get to see the message. This is often linked to the email sender reputation, as it can account for up to 90% of deliverability, which means even if your campaign is thoroughly designed, it can still meet obstacles with the domain or IP issues triggering inbox filters.
These challenges are growing more and more complex when you consider that 45% of global email traffic is classified as spam. Email providers have become increasingly ruthless and often sweep legitimate high-volume mailings into junk folders.
Marketers who rely only on email must now navigate compliance standards, authentication protocols, and shifting algorithm behaviors. For many organizations, this adds cost, operational pressure, and uncertainty. That’s why more teams are exploring alternative communication platforms that deliver messages reliably at scale, such as Text-Em-All, and stronger email marketing practices. The following companies offer solutions designed to help brands reach large audiences without worrying about inbox placement or blocked messages.
Text-Em-All
Text-Em-All is built for organizations that need dependable high-volume communication without the usual deliverability issues that come with email campaigns.
The focus is on SMS and voice broadcasting tech to maintain a strong performance, even when sending thousands of messages at the same time. Text-Em-All minimizes the risk of filtering through optimized routing and carrier-approved pathways. They also rely on fast 10 DLC or toll-free verification so that messages consistently reach their recipients, no matter how many there are. This infrastructure makes it especially effective for time-sensitive alerts, promotional campaigns, and large-scale announcements.
Deliverability is where Text-Em-All truly stands out. Unlike email, where sender reputation, authentication errors, and spam algorithms can prevent messages from reaching the inbox, SMS operates with far fewer barriers.
Texting is a low marketing noise environment in 2025. As a result, messages are almost always seen and rarely blocked. The platform also provides clear compliance guidance; risks related to carrier rules, opt-outs, and regulatory requirements are not an issue. Additionally, they have a predictable pricing that scales easily as your contact lists grow, which makes it a reliable, high-volume solution.
HubSpot Marketing
HubSpot Marketing Hub gives you an easy way to manage high-volume communication through a unified CRM and email system.
Its data-driven approach can help boost engagement, as it allows teams to tailor messages. Besides, HubSpot uses tools for reputation monitoring and authentication to support inbox placement for growing lists.
However, as audiences get larger, pricing can climb quickly. Besides, even with safeguards in place, promotional emails can still face spam-filtering issues. For teams operating at scale, it performs well, but it doesn’t fully eliminate the challenges tied to email deliverability.
Mailchimp
Mailchimp has always been a strong choice for companies that need to send large numbers of marketing emails. It’s designed for high-volume campaigns:
- Templates
- Segmentation tools
- Automation features
Mailchimp has developed features to support deliverability, as they’ve introduced domain authentication and list-cleaning guidance.
Unfortunately, when it comes to scalability, monthly costs can rise sharply. Additionally, it’s worth mentioning that high-volume blasts tend to be flagged by spam filters, even after following all the Mailchimp guidance on deliverability.
Brevo
Brevo has changed its name, so you may know it under its former name, Sendinblue. The platform is designed for communication across email, but also chat, SMS, and WhatsApp. Can it support high volume? Yes, absolutely, but with a focus on email performance as a priority. They have implemented safeguards to maximize deliverability, such as list segmentation and sender authentication. So the rate of delivered emails is high, but there are still some that may trigger filtering flags from major inbox providers
On the other hand, SMS features lack optimization ot manage large-scale sends, and they can struggle with time-sensitive broadcasting needs. That being said, this remains a strong platform, with flexible pricing plans too.
Active Campaign
Active Campaign is focused on helping organizations communicate at scale, and it does it through automation, CRM backend personalization, and list segmentation. Tailoring messages does support deliverability to some extent, so the platform relies on engagement score to earn points with inbox providers. Naturally, sender reputation and list hygiene also influence whether the message will be delivered.
But for high volumes of contacts, the plans can get expensive, and campaigns are more likely to struggle with deliverability issues. Additionally, the customer service team is sometimes slow to respond, which means lesser experienced clients can feel stuck in a loop of undeliverable campaigns with little support.
Billo
Billo helps brands scale their creative output by producing large volumes of user-generated-style videos for paid ads and social campaigns. This approach avoids many of the deliverability issues that email faces because content is distributed through ad platforms rather than inboxes.
Companies use Billo to keep their campaigns fresh and maintain visibility across multiple targeting groups. The trade-off is that reach ultimately depends on ad budgets, creator skills, and platform algorithms, so performance can fluctuate based on market competition.
Billo works well when teams need high-volume creative that supports consistent exposure, but it doesn’t guarantee delivery in the same way a direct messaging tool does.
Spectrum Reach
Spectrum Reach gives businesses access to TV and streaming audiences at a substantial scale. They offer ad placement that bypasses spam filters and inbox limitations entirely.
Campaigns benefit from geographic and demographic targeting, and the controlled distribution environment means ads are delivered as scheduled. But targeting is not as accurate as with other types of campaigns.
Additionally, producing and airing TV or OTT spots can be significantly more expensive than digital messaging. Ultimately, as these formats don’t offer the immediate, measurable response, it can be hard to monitor performance.
Spectrum Reach is a strong option for brands seeking large-audience visibility, though the cost and planning requirements place it in a different category from more agile high-volume messaging solutions.
The Bottom Line
There is no right or wrong answer when it comes to improving deliverability issues for a better reach. How much targeting is required and what you want to achieve will define whether a mass-targeted texting platform like Text-Em-All or a TV campaign solution like Spectrum Reach is best suited to your business.
