Price is rarely why a team switches inbox providers. Support is the #1 reason teams move their sending to us. So we're putting the question to the market. What would make you switch inbox providers?

Hand your mailboxes to a team that watches them for you → spend the quarter signing clients. One agency running around 400 mailboxes across 8+ clients signed 5 new clients in Q2 on our infrastructure. Before, they split those mailboxes across a few different providers. When something went wrong, they had hardly any visibility into where. At @premiuminboxes, all of it now belongs with us: • Google and Microsoft inboxes under a SINGLE platform. • A private Slack channel for their quick questions. • White glove management, with our team watching over the infrastructure for them. Since moving to us, their reply rates have held consistent. All 5 new clients came from outreach sent on that same infrastructure.

New customers ask us how fast a positive reply needs an answer. The target we give them: 60 seconds. If 10 minutes is your fastest today, start there and work down to a minute. How fast does your team answer a positive reply?

When you have a partner that owns deliverability for you, every dip gets caught before it costs you. One agency runs $4.5M a month in new client revenue through our infrastructure. At that scale, a slight dip can cost them $100,000 without anyone noticing. So we flag the drop as soon as it starts. Our devs built them an ENTIRE flow that swaps bad inboxes for new ones. Warmup and signature config are automated too.

We watched one customer go from 6 weeks of usable sending accounts to 12 to 16. He changed 1 number to get there: He had been sending 20 emails a day from every mailbox, which is the ceiling... Then he dropped his daily send to 15, and we tracked the accounts from there: -> At 20 a day, he stopped getting replies at about week 6. -> At 15 a day, he was still getting replies from the same accounts at 12 to 16 weeks. Google and Microsoft both start throttling around 15 sends per mailbox per day. Push past that and sender reputation drops INSTANTLY. 5 emails a day per mailbox bought that customer another 6 to 10 weeks out of every account he owned.

A customer running 3,000 sending accounts came to us with a reply rate that had been chopped in half… We pulled every campaign they had run and read them against each other. Two things came out of it: (and the infrastructure was neither of them) -> Their two reports counted replies differently. One included automatic replies, the other counted only the replies a human typed, and putting those two side by side produced a step down of 0.62%. -> The rest was the audience mix. Their agency segment replied at 1.65%. Their enterprise segment replied at 0.34%. As enterprise took a bigger share of the volume, the blended number came down with it. On a like-for-like human reply rate, their earlier campaigns got 0.7%. The recent ones got 0.3%. That decline was absolutely real, and it followed the changes they had made to the campaigns themselves. The sending setup had ZERO effect on either number. We told them to roll the campaign back to the build that was working, and to report the two reply types separately from then on. Because a rebuild of the sending accounts would not have moved either number. Something to look out for…

Most teams buy dozens of domains to run cold email at volume. You can do it on one. Roughly 60 inboxes spread across a single root. One domain now does the work of fifty.

Open rate is a vanity metric. It counts servers inspecting your email, NOT people actually reading it. A 65% open rate with zero meetings is a placement or offer problem. Track positive replies and meetings booked instead!

Most teams buy dozens of domains to run cold email at volume. You can do it on one. Roughly 60 inboxes spread across a single root. One domain now does the work of fifty.

Cheap inboxes are a false economy. They cost less on day one and put you in spam by week two. Reputation YOU control > reputation you inherit from whoever burned those inboxes before you.