If you’re sending cold emails in 2025, there’s a good chance you’ve heard of TrulyInbox.
It’s one of the more talked-about warm-up tools out there, especially among small teams and solo founders trying to keep deliverability in check without spending a fortune.
But does it actually help your emails reach the inbox? And how does it stack up in real-world use?
We pulled reviews, discussions, and community posts from Reddit, G2, Capterra, and independent blogs to get the full picture. Here's what people are really saying about TrulyInbox:
Most users say getting started is fast. You connect your inbox, set your limits, and the warm-up begins. No confusing walkthroughs or endless configuration steps. It just works.
Want to control how many warm-up emails go out each day? Adjust reply rates? Set quiet hours? You can do all that if you're on a higher plan. The customization is there, but it’s not included in the basic tier. Still, for teams who need more control, this flexibility is a big plus.
This is a standout feature. Unlike most tools that charge per inbox, TrulyInbox lets you connect as many as you want on every plan. That’s a huge win for agencies or solo senders juggling multiple domains.
The forever-free plan gives you 10 warm-up emails per day. It’s not massive, but it’s enough to test things out or keep a low-volume inbox active. And it’s not a gimmicky 7-day trial either. You can use it as long as you want.
Connecting inboxes isn’t always smooth. A few users reported OAuth snags or issues with Microsoft accounts. It’s not a dealbreaker, but if you’re managing multiple client inboxes, it might take some extra setup time.
The free tier is generous in spirit, but if you're warming more than one inbox or sending at scale, 10 emails per day won't cut it. Most users outgrow it pretty quickly.
TrulyInbox handles warm-up, but that’s about it. There’s no blacklist monitoring, spam-word checker, or email verification built in. So while it helps with one part of deliverability, you’ll need to plug in other tools for full coverage.
Some users say the tool works great, at first. But over time, results can plateau. There’s limited transparency into the warm-up pool, and some question whether the engagement network is large or realistic enough for high-volume senders.
If you only need basic warm-up, the Starter plan does the job. But if you want full customization, you’ll need to move up to the Growth plan or higher.
In r/Emailmarketing and other cold outreach communities, TrulyInbox gets regular mentions. It’s often described as a budget-friendly choice that works well when paired with good sending practices.
Some users appreciate how simple it is:
"Setup was fast. I started sending warmup emails the same day."
Others add a word of caution:
"It helps, but it’s not magic. You still need SPF, DKIM, and a solid cold email strategy."
The consensus? TrulyInbox can be effective in the short term if you pair it with good sending practices. It’s not a deliverability fix in a box, but can be a solid start.
TrulyInbox fills a useful niche. It’s simple. It’s affordable. And it lets you connect unlimited inboxes without charging you extra.
That makes it an option for:
But if you're scaling fast, managing deliverability across dozens of clients, or need visibility into spam placement and blacklist issues, you’ll probably need something more.
TrulyInbox handles warm-up. Mailivery goes further.
If you’re managing serious outbound volume or running cold email at scale, Mailivery gives you tools that TrulyInbox doesn’t touch.
Mailivery uses real inboxes that are part of a consistently monitored and optimized warm-up network. Every warm-up email is opened, replied to, and moved to inbox if it lands in spam. These aren’t just metrics, they’re signals mailbox providers look for.
You don’t have to upgrade to unlock customization. Everything, from reply frequency to scheduling windows, is included on all plans.
Spam checker? Check. Blacklist monitoring? Built in. Email verification? Included. Mailivery is built for cold email teams that want to land in the inbox, not just send email.
For SaaS platforms and agencies, Mailivery’s API lets you embed warm-up into your workflows, customize settings at scale, and track inbox health programmatically.
This isn’t outsourced, template-driven support. It’s founder-led, real-human feedback loops. Many of Mailivery’s features come directly from agency partner suggestions.
TrulyInbox is decent if you’re just getting started. It’s simple, accessible, and gives you room to experiment.
But if cold email is how you grow your business, and you need real control, real engagement, and real deliverability tools, Mailivery is the better long-term move.
Try Mailivery free for 7 days.
✓ Unlimited inboxes
✓ Continuously monitored and optimized warm-up network
✓ Real engagement warm-up
✓ Built-in blacklist and spam protection
The easiest way to get responses to your cold emails.
