Release Updates: Azure ACS Now on Scale Plan + Add-On Accounts for Alpha

RassamApr 8, 2026Pricing & Updates

Historical release note. This changelog describes the Scale/Alpha add-on from an earlier pricing model. ColdSend now runs on a single plan with optional domain additions. See how pricing works now.

⚠️ Historical announcement — pricing updated June 2026

The plan changes described in this post (Scale with Azure, Alpha add-on accounts) were an intermediate step in our pricing evolution. ColdSend has since been simplified to a single plan — $99/mo to start with one domain, and every extra domain is $30/mo (100 mailboxes and 25,000 sends included per domain). There is no Bring Your Own Account or Done-For-You toggle anymore. See our current pricing or the updated pricing explained blog for details.

Two changes: lower entry point for pre-warmed IPs, higher ceiling for scale.

What's New

Scale plan ($79) now includes one Azure account

You can now connect Azure ACS on the Scale plan. This gives you 4 domains with pre-warmed IPs — 400 inboxes sending up to 50K emails per month.

Before: Scale was external inboxes only. Now: Scale = 1 Azure account + unlimited external inboxes.

Alpha plan ($249) now supports add-on accounts

Need more pre-warmed IP capacity? Add Azure accounts for $100/month each. Each account adds ~96K emails/month and covers 4 more domains.

Plan Buying Guide

These are the same questions people ask us in our Discord:

How much pre-warmed IP capacity do I need?
What if I have 10 domains?
Should I use external inboxes or Azure?

So we built a tool that does the math for you. Answer 4 questions. Get a specific recommendation with the breakdown.

Try it →

Quick Reference

Plan	Pre-Warmed IPs	External Inboxes	Monthly Cost
Starter	None	Up to 100	$39
Scale	50K (1 Azure, 4 domains)	Unlimited	$79
Alpha	~96K per account	Unlimited	$249 + $100/add-on

You bring your own Azure account. We automate the setup. Azure costs ~$2/month to run.

How Domain Math Works

If you have 10 domains on Scale:

4 domains on Azure (pre-warmed IPs, 50K limit)
6 domains need external inboxes (Gmail, Outlook, SMTP)

If you have 10 domains on Alpha with 2 add-ons (3 total accounts):

12 domains covered on Azure
All 10 of your domains are covered

The buying guide calculates this automatically.

Try the Buying Guide | Join Discord

Got Questions? We’ve
Got Answers

No. This post describes the older Starter/Scale/Alpha model ($39/$79/$249 plus $100 per add-on Azure account). It has since been superseded by a single plan — $99/mo to start with one domain, and $30/mo per extra domain. See [how pricing works now](/blog/coldsend-pricing-explained).

Each plan in this model allows unlimited imported Google/Outlook/SMTP inboxes — they just don't count against the pre-warmed Azure send limit.

In this model, 4 sit on Azure and the remaining 6 connect as external inboxes. With Alpha add-ons at ~$100/mo each, every extra Azure account covers roughly 4 more domains and ~96K emails/mo.