AY Inbox
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Set up by Claude Code, Cursor, Codex, ChatGPT and any MCP agent

Cold email that lands, and replies you answer in minutes.

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AY Inbox warms your mailboxes, sends at a safe pace and brings every reply into one inbox, where Aya drafts the answer and offers a time to meet.

One workspace in place of five tools: warmup, a sequencer, a shared inbox, a scheduler and a CRM. One login.

Invite only for now. Ask for access and we will set up your workspace with you.

app.ayinbox.com
Sunrise Labs
Today
Yesterday
Re: Faster hiring for Q1
[email protected] · to [email protected] · step 2 of 3
Maya Tuesday
Hi Lena, following up on my note from last week. Would a 20 minute look be useful before your Q1 planning?
Lena Park 2 minutes ago
Sounds good. Could we talk Thursday? Afternoons work best for me.
Aya drafted a replyReview before sending

Great, Lena. Thursday afternoon works. Here are a few times in your time zone:

Thu 14:00Thu 15:30Thu 16:00
SendEditFrom your brain: offer, calendar
Calendar
Thu14ThursdayBerlin time · Cal.com
13:0014:0015:0016:0017:00
Team sync
14:00 offered to Lena
Sofia Marin intro call
15:30 offered to Lena
16:00 offered to Lena

Aya offers only times that are free here.

Inbox

Every reply, one inbox. Replies from all your mailboxes land together, sorted as they arrive, so the warm ones never wait.

Aya

Answers that know your offer. Write your offer, tone and rules once. Aya drafts every reply from them and flags anything they do not back, like a discount you never set.

Meetings

The meeting, booked in the thread. Connect Cal.com or Calendly. Aya offers real free times in their time zone, and one click books the one they pick.

Used by teams at

  • AY Automate
  • Sage
  • Backbase
  • JetBrains

Inside Aya

One brain behind every reply. Everything you know about them and everything you know about your offer, read before a word is written.

Them[email protected]

NowLena Park answered step 2 of 3 of Sunrise Q3. Aya drafted the reply; you send it.

  1. 01Readthe reply from [email protected]ok
  2. 02LabelInterested, by inbox taggingok
  3. 03Contextlead, company, details, thread, step 2 of 3ok
  4. 04BrainSunrise Q3: offer, tone, never say, 2 pagesok
  5. 05CalendarCal.com: 3 free on Thursday afternoonok
  6. 06Draft3 times, written in her time zoneok
  7. 07Checkevery claim is in your brainok

YouBrain · Sunrise Q3

Aya drafted a reply to Lena ParkReview before sending

Great, Lena. Thursday afternoon works. Here are a few times in your time zone:

Thu 14:00Thu 15:30Thu 16:00

Used: Sunrise Q3 brain · offer · tone · calendar

A demo workspace. Each source is something a reply draft in AY Inbox reads: the reply and the thread, the contact, the campaign step, its brain and your calendar.

Speed to lead, in one thread. A warm reply cools fast. AY Inbox sorts it and drafts the answer before you open it, so the meeting is booked while they still remember you.

  1. Lena replies“Could we talk Thursday?”
  2. Sorted as interestedInbox tagging reads the reply the moment it lands.
  3. Aya drafts the answerFrom your campaign brain, with three free times in her time zone.
  4. You press sendOr auto-reply sends it, for the campaigns you trust with it.
  5. Meeting bookedLena picks 15:30. One click books it and the invite goes out.

An example of one reply's path, not a measured average.

Senders

Warmup trades real conversations with other mailboxes, from 10 emails a day up to 40, until providers trust it.

Outreach

Each mailbox starts at five emails a day and earns one more for every lead who replied to it that week. Follow-ups stop for anyone who replies.

See the limits that are on by default →
Mailboxes

26 mailboxes. 17 are warming, 7 are ready and 2 need you.

[email protected]Day 22 · 31 a day
Day 1 · 10 a dayDay 31 · 40 a day
JO[email protected]Ready · 40 a day
SA[email protected]Warming · day 3, 12 a day
EV[email protected]Needs you · DMARC record missingFix
Sunrise Q3 launch outreachRunning
Sent todayPaced by replies
21 of 26
MA[email protected]5 to start, plus 7 who replied9 of 12
JO[email protected]5 to start, plus 4 who replied7 of 9
SA[email protected]5 to start, plus 0 who replied5 of 5

09:00 to 17:00 Berlin · at least 10 minutes between sends

Pipeline

Replies become deals. Deals, tasks and meetings sit beside the inbox, so nothing gets copied between tools. Move a deal to its next stage and the totals follow.

Focus a deal, then press the left and right arrow keys to move it between stages.

See the rest of the stack →
Deals
Open5
Pipeline value$66,000
Won$0
New 2$21,000
Ava ChenAC$15,000Harbor, team rollout
Theo GrantTG$6,000Q2 pilot
Qualified 1$9,000
Omar HaddadOH$9,000Ops team pilot
Meeting booked 2$36,000
Lena ParkLP$24,000Northwind, Q1 hiring
Sofia MarinSM$12,000Evaluation
Won 0$0

Insights

See what worked. One sentence says how the week went. Below it, the reply funnel and your campaigns ranked by what came back.

How Insights counts →
Insights

In the last 7 days you sent 79 emails; 62% were opened and 22% got a reply. 3 bounced.

Sent79Each bar is a day.
Sent79
Opened49 62%
Replied17 21.5%

Give it to your agent. Your agent connects over MCP and sets up your lists, campaigns and brains. Agent sign-up, where it opens its own workspace, is not open yet. Nothing is sent until a person takes over.

Give this to your agent
  • Claude Code
  • Claude
  • Cursor
  • Codex
  • Gemini CLI
  • ChatGPT
set up AY Inbox - https://ayinbox.com/skill.md

Setup in two steps.

01 Pick your agent

Your agent

Read ayinbox.com/skill.md and connect over MCP at https://api.ayinbox.com/v1/mcp.

Each prompt follows that agent's own way of adding an MCP server.

02 Paste it into your agent

Prompt
Set up AY Inbox for me. Read https://ayinbox.com/skill.md and follow it: connect the MCP server at https://api.ayinbox.com/v1/mcp, keep any key in your MCP config and out of this chat, then call get_workspace_limits and tell me what my workspace can do.

Paste it. Your agent sets itself up, or walks you through it. More ways to connect →

Building it yourself? Everything an agent does over MCP is also on the REST API, with the same key. Read the API reference →

And the rest of the stack. Leads, research, CRM and deliverability sit beside your campaigns and inbox, so nothing gets copied between tools.

Lead finding and verificationFind people at the companies you name and add only the addresses that verify as deliverable.
Contact research and first linesAya reads a lead's company and writes an opening line that is about them.
Lead scoring and signalsGrade every contact A to D against your ideal customer, and see which companies are hiring, raising or changing leaders.
CRM with pipelines and dealsReplies become deals, tasks and meetings without leaving the inbox.
Placement tests and an advisorTest where your mail lands and get told what to fix, mailbox by mailbox.
Sending domainsDNS checks for SPF, DKIM and DMARC, tracking domains and redirects in one place.
Forms and automationsCapture leads from your site and route them with steps that can read a reply and act.
IntegrationsSlack, HubSpot, Salesforce, Pipedrive, Apollo, Clay, Zapier, Make and n8n, plus webhooks.

Safe by default.

The limits that protect a sender's reputation are on before you change anything, and a mailbox that starts hurting other people is taken out of the warmup pool.

Cold email50 a dayCold emails per mailbox, out of the box
Warmup10 to 40Warmup ramp, one more email each day
Spacing10 minMinimum gap between two sends from one mailbox
Complaints0.1%Complaint rate that pauses a mailbox's warmup for a week

Questions, answered. Sending limits, warmup, what Aya sends on its own and how to get access.

What is AY Inbox?

AY Inbox is hosted cold email software. It warms your mailboxes, sends cold email at a paced daily volume and brings every reply into one inbox, where Aya, its AI assistant, drafts the answer and offers a meeting time. Deals, tasks and meetings sit beside the inbox, so one workspace takes the place of warmup, a sequencer, a shared inbox, a scheduler and a CRM.

How many cold emails can one mailbox send a day?

50 a day by default, with at least 10 minutes between two sends from the same mailbox. A newly connected free Gmail or Outlook.com account starts at 20 a day, 15 minutes apart. To send more, add healthy mailboxes instead of raising the cap on a few: a campaign spreads each day's sending across every mailbox it uses.

How the sending limits work →
How does the warmup work?

Your mailbox exchanges short, ordinary emails and replies with other mailboxes in the warmup pool, starting at 10 a day and adding one a day up to 40 (25 for a free Gmail or Outlook.com mailbox). Warmup has its own budget, separate from cold email, and keeps running at a few messages a day while a campaign is live. A mailbox whose complaint rate reaches 0.1% leaves the pool for a week. No warmup guarantees inbox placement.

Why warmup exists and how providers read it →
Which mailboxes can I connect?

Gmail and Google Workspace, Outlook and Microsoft 365, and any other mail host over SMTP and IMAP. On Google Workspace or Microsoft 365, an administrator's grant connects every mailbox on the domain at once, and up to 5,000 mailboxes can be imported from a file or a pasted list.

Does Aya send replies on its own?

Only in campaigns you switch to auto-reply. Everywhere else Aya writes a draft and a person decides whether to send it. Each draft reads the thread, the contact, the campaign step and your campaign brain, and flags anything the brain does not back, such as a price or link you never gave. Auto-reply answers only qualifying human replies, with the links and figures a teammate approved; opt-outs, complaints and anything unclear go to a person.

Which replies auto-reply answers →
Can AY Inbox book the meeting?

Yes, through Cal.com or Calendly (a paid Calendly plan with its Scheduling API). Aya offers open times from your calendar in the prospect's time zone, and when they pick one, AY Inbox books it through your provider, which sends the invite. Nothing is booked until a teammate clicks Book it.

Can an AI agent set up AY Inbox?

Yes. Give your agent ayinbox.com/skill.md, or connect it to the MCP server at https://api.ayinbox.com/v1/mcp with browser sign-in or an API key. It can build contact lists, campaigns and campaign brains, and the same actions are on the REST API. Agent sign-up, where an agent opens its own workspace, is not open yet: access is by invitation, and https://api.ayinbox.com/v1/agents reports enabled: true once it is.

How do I get access?

Access is invite only for now. Email [email protected] with your company, your website, how many mailboxes you send from and what you sell, and we will set up your workspace with you and help you connect and warm your first mailboxes.

Your next reply is on its way.

Ask for access and we will set up your workspace and help you connect and warm your first mailboxes.

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