RK
Ryan K.
Chief AI Officer
Consulting
Small-Business (50 or fewer emp.)
"Diversified Outreach with Solid Support"
5/5
What do you like best about maildoso?

I appreciate how Maildoso helps us diversify risk by not being dependent on just one provider since it allows us to spread our campaigns across different types of mailboxes. I like that the isolation feature works well, as each domain operates independently, which helps with our outreach efforts. The fact that we achieved decent results with hitting Outlook is reassuring. I also found the knowledge base to be actually useful, especially during the setup process. The initial setup was pretty smooth, and that's definitely a plus for me. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

I had an issue connecting via Bluemail. I eventually found the answer in the docs myself. Review collected by and hosted on G2.com.

Yulia K.
YK
Yulia K.
Chief Business Development Officer at Stfalcon
Manufacturing
Mid-Market (51-1000 emp.)
"Effortless Scaling with Maildoso's Reliable Setup"
5/5
What do you like best about maildoso?

I use Maildoso for running cold email outreach at scale, and I really like that I can manage multiple mailboxes and keep everything authenticated, which allows me to send campaigns without dealing with setup issues each time. The setup feels like reliable infrastructure that keeps our operations moving smoothly. One feature I appreciate is the ability to bring our domains and connect them, making scaling a lot easier without being locked into anything. The setup is fast too, as I managed to get 40 accounts live and authenticated in under 10 minutes. The initial setup was straightforward, which is a big plus for me. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

Wish they had more CRM integrations. Review collected by and hosted on G2.com.

Kerem O.
KO
Kerem O.
Cybersecurity Architect
Capital Markets
Enterprise (> 1000 emp.)
"Streamlined Our Email Campaigns with Ease"
5/5
What do you like best about maildoso?

I like that Maildoso is fairly simple to use once completed and doesn't require a lot of technical knowledge to get started. Managing multiple sending accounts feels smoother compared to what we used before. The domain setup part saved us a decent amount of time. The initial setup was easier than I expected, as most of it was pretty straightforward. We were able to get inboxes connected without spending hours reading documentation. Things are more stable and easier to keep running week to week. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

Nothing much Review collected by and hosted on G2.com.

MB
Michael B.
Founder/CEO
Program Development
Mid-Market (51-1000 emp.)
"Cost-Effective Scaling with Effortless Integration"
5/5
What do you like best about maildoso?

I really appreciate that Maildoso is built for scale. We run about 400 mailboxes through it, and the cost savings we get compared to Google Workspace or Microsoft 365 are huge. The one-click integration with our sequencer made getting started very easy. The SMTP setup makes it easy to handle large volumes without things breaking, so I don't have to worry too much about managing individual mailboxes. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

There's no built-in warm-up tool anymore, so you have to rely on an external service for that. It's not a huge issue, but it does add one more step to manage. It would be better if they added a simple built-in warm-up feature again, even something basic. Right now, switching between tools makes the process a bit fragmented. Review collected by and hosted on G2.com.

IR
Igor R.
CTO
Program Development
Mid-Market (51-1000 emp.)
"Effortless Email Scaling, Exceptional ROI with Maildoso"
5/5
What do you like best about maildoso?

I appreciate Maildoso's pricing, which keeps our costs around $2 to $2.50 per mailbox while including both SMTP and Google Workspace. This is a very good deal from my experience. I also like the automated DNS setup (SPF/DKIM), which saves a lot of back and forth with the technical team. Another aspect I like is the simplified setup, which makes sending at scale much more reliable. The initial setup was pretty straightforward thanks to the automated DNS configuration. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

The UI is very basic. It's not 'pretty' by modern SaaS standards and sometimes navigating feels a bit tricky. It will be pretty good if all this could be improved. Review collected by and hosted on G2.com.

RR
Rashique R.
Portfolio Manager
Financial Services
Mid-Market (51-1000 emp.)
"Transforming Cold Email Outreach with Robust Deliverability"
5/5
What do you like best about maildoso?

I like Maildoso because it allows us to manage multiple mailboxes and maintain deliverability while sending around 15,000 emails a month without blacklist issues. The self-healing feature is great for managing our account burn rate, keeping our volume consistent without constant monitoring. The solid deliverability and improved reply rates, which jumped from 1% to nearly 3% after moving over 50 mailboxes, are impressive. The IP rotation Maildoso uses for SMTP effectively keeps our accounts out of the spam folder, stabilizing our sending reputation. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

The onboarding documentation could be clearer. If you aren't already familiar with how cold email infrastructure works, you might find the initial setup a bit confusing. Review collected by and hosted on G2.com.

Arvid K.
AK
Arvid K.
CEO
Information Technology and Services
Small-Business (50 or fewer emp.)
"Flexible IP Rotation That Keeps Mailboxes Performing Strongly"
5/5
What do you like best about maildoso?

The IP rotation is the main tech advantage for us. Mailboxes aren’t tied to one permanent IP, and poorly performing IPs can be replaced. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

There aren’t any detailed infrastructure logs. Most competitors don’t provide them either, but they’d still be usefull. Review collected by and hosted on G2.com.

WB
Will B.
Co-Founder and CEO
Transportation/Trucking/Railroad
Small-Business (50 or fewer emp.)
"Effortless Scaling with Maildoso"
5/5
What do you like best about maildoso?

I use Maildoso to efficiently build and manage our mailboxes and domains for outreach. It solves the issue of burning through domains by capping at 15 emails per day per box, which has stabilized our deliverability. I'm impressed with how fast it sets up domains, mailboxes, and DNS configurations, making them ready to use quickly. The ease of scaling is Maildoso's biggest draw; scaling from 75 to 300 boxes without a dip in deliverability was seamless. I find managing the domain-to-mailbox ratio simple with Maildoso, and creating new domains and mailboxes in minutes without needing technical expertise is great. I enjoy the IP rotation and inbox reputation monitoring features that keep our outreach in people's inboxes rather than spam. The setup was really straightforward, getting our domains and mailboxes live and ready in just a few minutes. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

The dashboard analytics are a bit thin and I think it could be more detailed. I have to pull data from my sequencer to really see the health of specific domains, as the internal view is quite basic. Review collected by and hosted on G2.com.

Michelle M.
MM
Michelle M.
Fractional Controller
Financial Services
Small-Business (50 or fewer emp.)
"Boosted Email Deliverability and ROI"
5/5
What do you like best about maildoso?

I use Maildoso for managing outbound email setups across multiple domains and mailboxes, mainly for cold outreach campaigns. What I like most about Maildoso is its reliability and pricing. The SMTP + Google Workspace combo (15 + 15) provides a solid setup at a very low cost per mailbox, making it unbeatable for the price. This combination is really effective because using SMTP alongside Google Workspace helps spread sending across different systems. It offers flexibility in how we set things up while maintaining low costs. Overall, it's a good balance between performance and affordability. Additionally, the initial setup of domains and mailboxes with Maildoso was pretty easy and didn't take long. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

The main thing for me is the limited TLD options in the app. It would be better to have more domain choices available directly. Having more TLD options available directly in the platform would make scaling easier without relying on external providers. It would also be helpful if domain purchasing and setup were a bit more streamlined inside the app so everything can be managed in one place. Review collected by and hosted on G2.com.

Weymouth G.
WG
Weymouth G.
Small-Business (50 or fewer emp.)
"Reliable Deliverability for German B2C Markets"
4/5
What do you like best about maildoso?

I mainly use Maildoso for scaling and stabilizing our B2C email outreach in Germany. It lets me warm up new domains and email accounts automatically, so I can safely increase sending volume without getting blocked or blacklisted. I also like how it manages multiple inboxes in one place and keeps our main company domain completely separate from outreach, so our core business communication is never affected. Maildoso helps me significantly with email deliverability—something that’s absolutely critical for B2C in Germany—and it takes away all the stress around it. I appreciate how it handles domain warming and inbox reputation so smoothly that I can focus on creating campaigns instead of fixing technical issues. It’s reliable and just works quietly in the background without complicated setups or constant troubleshooting. Another big plus is how well it handles German email providers like GMX, Web.de, and Outlook.de, which improves our open rates and response rates. Review collected by and hosted on G2.com.

What do you dislike about maildoso?

The user interface feels a bit basic compared to more modern tools—it's functional but not as polished or visually clear as some German-focused email tools, which makes it take a little time to get used to. Some automation features are also limited. You can't set up super complex workflows directly inside the platform; for more advanced B2C sequences, I still have to connect it with other tools. It's great for deliverability, but not as strong for full campaign automation. Review collected by and hosted on G2.com.