Mystrika
Official Google Workspace and Microsoft 365 inbox provider. We set up everything for you - domains, DNS, inbox creation, sequencer integration, and warmup enabled. Ready in under 6 hours.
Premium Inboxes has carved out a reputation as the go-to provider for teams that need official Google Workspace and Microsoft 365 inboxes for cold email outreach. With over 2,000 customers, 570,000+ inboxes delivered, and a 4.9/5 Trustpilot rating from 339 reviews, it's one of the most trusted names in the space. The company positions itself as a fully managed service: you order, they build, and you send. No technical setup required on your end.
What sets Premium Inboxes apart is the level of hands-on support. Founder Richard and his team join your Slack channel directly -- no ticket queues, no chatbots. When something breaks, someone picks up. This personal touch is reflected in the reviews, with 27% of them mentioning Richard by name. For agencies running campaigns for multiple clients, this kind of direct access can be the difference between a smooth operation and a crisis.
The service covers the full technical stack: domains, DNS records (SPF, DKIM, DMARC), inbox creation, profile setup, and direct upload to your sequencer. They integrate natively with Smartlead, Apollo, Lemlist, Reply.io, and Bison. Every inbox is an officially licensed business account from Google or Microsoft, which means proper authentication and lower risk of throttling. The "Insured Infrastructure" tier adds 24-hour active monitoring, priority replacement, and a dedicated account manager.
Pricing is straightforward and transparent. Google Workspace and Microsoft 365 inboxes start at $3.50 per inbox for the Start Up tier (1-249 inboxes), with no monthly commitment. The Insured tier costs $4.50 per inbox and includes all the premium support features. There are no setup fees, platform fees, or contracts. For teams sending 500 emails per day, the calculator on their site recommends 34 inboxes across 12 domains, costing about $119 per month. That's competitive for a fully managed solution.
Premium Inboxes is best for agencies and outbound teams that want to avoid the headache of setting up and maintaining email infrastructure themselves. If you're scaling from 10 to 8,000 inboxes and need reliability, fast setup, and real human support, this is a strong choice. The combination of official business licenses, sequencer integration, and a founder who's personally in your Slack makes it a standout option in a crowded market. For teams that value speed and peace of mind over DIY control, Premium Inboxes delivers exactly what it promises.
Features
- Direct sequencer integration with Smartlead, Apollo, Lemlist, Reply.io, Bison
- Unlimited replacement inboxes
- Guaranteed setup time under 6 hours
- Dedicated Slack channel with founder and team
- 24-hour active monitoring (Insured tier)
- Advanced analytics and priority support (Insured tier)
Pricing
Pros
- Highest-rated inbox provider on Trustpilot (4.9/5 from 339 reviews)
- Fast setup - most orders delivered same day
- Personal support from founder Richard in your Slack channel
- Transparent per-inbox pricing with no hidden fees
- Works with all major sequencers out of the box
Best For
Agencies and outbound teams needing reliable cold email infrastructure at scale