Maildoso
Maildoso is a cold email infrastructure tool that helps you set up inboxes, buy domains and achieve up to 95% deliverability.

Maildoso is an SMTP and Google Workspace mailbox provider built for cold email senders who need reliable deliverability. Unlike most providers, it allows users to send links even in their first email without impacting deliverability.
To keep your sending reputation intact, Maildoso runs inbox placement tests every three days per mailbox, automatically disables burned mailboxes for a 14-day cool-down recovery period, and hides your primary domain behind captcha to protect it from any risks. All customers also get access to a free deliverability audit.
On the infrastructure side, Maildoso operates across 35 global data centers with IP rotation and self-healing mailboxes to ensure consistent performance. They offer official Google Business licensed accounts and are currently working on adding Microsoft inboxes.
MaildoSo is best for businesses of all sizes. If you are sending a minimum of 500 emails a day, then MaildoSo is a no brainer.
Maildoso can help you achieve up to 95% deliverability its also is one of the best alternatives to Scaled Mail, ZapMail, and InboxKit
Top Maildoso Features
- SMTP and Google Workspace mailboxes
- Free domains included
- Links allowed in first email
- Inbox placement tests every 3 days
- Primary domain hidden with captcha
- Free deliverability audit
- Auto-disable burned mailboxes
- 14-day mailbox cool-down recovery
- IP rotation support
- Self-healing mailboxes
- 35 global data centers
- Official Google Business licensed accounts
- Microsoft inboxes (coming soon)
Maildoso Pricing
Maildoso's SMTP mailboxes start at $1.80 with free domains included, while Google Workspace accounts start at $2.50 — claimed to be the lowest GW price on the market. Domains are also available for $8 each. Note that the $2.50 GW pricing applies to larger volume packages, so costs may vary based on how many mailboxes you purchase.
FAQs
1. What types of mailboxes does Maildoso provide?
Maildoso provides both SMTP mailboxes and official Google Workspace accounts with a business license. They are also currently working on adding Microsoft mailboxes to their offering.
2. How does Maildoso protect my primary domain?
Maildoso hides your primary domain using captcha, which prevents it from being exposed or blacklisted during cold email campaigns. This adds an extra layer of protection to your main domain's reputation.
3. Can I send links in my cold emails without hurting deliverability?
Yes. Maildoso allows users to send links even in their very first email without negatively impacting deliverability, which is a limitation seen with many other providers.
4. How does Maildoso handle burned or underperforming mailboxes?
Maildoso automatically detects burned mailboxes and disables them for a 14-day cool-down period. After recovery, these mailboxes become more reliable for sending again, without any manual intervention needed from the user.
5. How often does Maildoso test inbox placement?
Maildoso runs inbox placement tests every three days for each mailbox at no additional cost. This helps users stay on top of their deliverability and catch any issues before they escalate.
6. What is Maildoso's pricing?
Maildoso's SMTP mailboxes start at $1.80 with free domains included. Google Workspace accounts start at $2.50, which they claim is the lowest GW price available on the market. Domains can also be purchased separately for $8 each. Keep in mind that the $2.50 GW pricing is tied to larger volume packages.
7. Does Maildoso offer any free services or trials?
Yes. Maildoso offers a free deliverability audit to all customers regardless of their plan. They also provide free inbox placement testing every three days per mailbox, making it easier for users to monitor and maintain their email performance without extra costs.
Features & Specifications
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Overall rating
4.76Total reviews
152Trust Score
95%Starting Price
$1.8/mailboxBest for
Agencies, Small business
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