Dimension 5 of 16

Responding to emails

Drafts or sends replies in your voice, with the right context and recipients.

The test: Reply to a scheduling email

Reply to the email from Sam proposing Thursday. Say Thursday doesn't work, offer two slots from my calendar, and keep my usual tone.

Passes when

  • Replies on the right thread to the right person
  • Offers slots that are actually free
  • Reads like you wrote it

Anchors

Generic draft; wrong context or recipient3
Right thread and slots; tone slightly off7
Indistinguishable from you, sent correctly10

Ranking

21 tested.

1MusePass · observed · Sep 8, 2026 · Found the thread, checked the calendar, drafted a reply-all with two open slots in the user's voice, asked, then sent on command.102DotsPass · test · Oct 1, 2026 · Found the unread OpenTable reply, answered with three open slots from the calendar plus the scheduling link, and reported back when done.103HarkWhatever you need, let Hark handle it104Grok BotPass · observed · Aug 31, 2026 · Replied to an unanswered thread in the shared inbox after a nudge.95InstinctPass · observed · Sep 1, 2026 · Recalled an earlier email on the same issue, drafted one combined message in the user's voice, asked before sending, then sent.96ZapiaPass · test · Oct 2, 2026 · Pulled the right Gmail thread, flagged a real calendar clash, and sent the reply from the user's own account after asking.97TownPass · test · Sep 16, 2026 · Asked to decline Thursday and offer two times; drafted a casual reply with two slots and waited for approval before send.88PokePass · observed · Sep 10, 2026 · Swept the guest-post backlog, listed four open pricing inquiries and who was owed a deliverable, then archived the rest and set a rule.89PallyPartial · test · Sep 14, 2026 · Drafted a clean reply declining Thursday at 3pm with Friday 11am and 2pm options and held it for approval.810OlliePartial · test · Sep 14, 2026 · Drafted a reply in chat after skipping inbox access and held it for approval rather than sending.811sznPartial · test · Sep 10, 2026 · Could not reach the inbox, so it drafted a clean reply declining Thursday with two supplied slots and held it for approval.812TomoPartial · test · Sep 10, 2026 · Could not reach the inbox, so it drafted a clean reply declining Thursday with two Friday slots and held it for approval.813AsmiPartial · test · Sep 14, 2026 · Drafted a reply declining Thursday and offering Friday slots in chat and held it for approval.814ShufflePartial · test · Sep 9, 2026 · Could not reach the inbox, so it drafted a concise reply declining Thursday with two alternate slots and held it for approval.815BobaPartial · test · Sep 10, 2026 · Could not reach the inbox, so it drafted a short reply declining Thursday with two alternate slots and held it for approval.816CatchPass · test · Sep 24, 2026 · Replied to a booking email on request but sent it from its own mailbox without saying so, so nothing showed in the user's inbox.717CaddyPartial · test · Sep 9, 2026 · Could not reach the inbox, so it drafted a reply declining Thursday with two supplied slots and asked before sending.718Wajo / FoPartial · test · Sep 9, 2026 · Found the contact had only been cc'd, flagged a conflicting flight from the calendar and sent the reply, though from its own address.619tinyNaturePartial · test · Sep 9, 2026 · Found the right thread and two free slots, drafted a plausible reply, then the send failed and it asked whether to hold.620DazzleFail · observed · Oct 23, 2026 · Cannot send from Gmail; it drafts the message and opens it in the device's Mail app for the user to send.321OpenInstinctFail · observed · Sep 17, 2026 · Offered to email the restaurant about the anniversary, then asked for approval five times in a row and never sent it.2

Public opinion

Share of positive public quotes. Founder posts excluded.

Not yet tested

Doesn't apply

Out of scope for these products.

What people say

99 quotes about this.

InstinctZoë SchifferSep 24, 2026

Last week it told me 'NOT TO OPEN' an email from a friend inviting me to a backyard BBQ—it turned out to be a phishing scam. Agents are a security nightmare. I get it! But I'm busy. I'm a mom. Everything feels like a security nightmare these days. For now, I'm willing to take the risk.

InstinctZoë SchifferSep 24, 2026

People have reported that when they tried to disconnect the agent from their email, they found out it was retaining a copy of their inboxes anyway. One venture capitalist said he was banned from Resy after the bot pinged its API roughly 200 times per hour while trying to make a reservation.

MuseLisa EadiciccoSep 23, 2026

It's been a busy afternoon for Pip, the AI agent I've been using in Meta's Muse app. The agent, which Meta launched on September 8, booked a Friday date night and made a packing schedule for my upcoming move. It also emailed a friend about a trip next month and made a planning document with places we want to visit.

OpenClawu/Signal-Inevitable-46Sep 20, 2026

The 'it does everything autonomously' thing is real and I started with very minimal guardrails. On day 2 it tried to send an email on my behalf that I hadn't approved. Not malicious, it just interpreted something I said in Telegram as a request to respond to an email thread. It wasn't. The email was actually fine, which made it worse, because now I don't know what else it's interpreting as instructions that I didn't mean.

MuseKatie NotopoulosSep 19, 2026

I started by testing it with some obvious, straightforward tasks. First, I asked it to look through my email and send me a daily digest of "important" emails (my inbox gets quickly clogged with PR pitches and newsletters). It did this admirably well. I also asked it to look at my credit and debit cards and tell me what subscription I could cancel — it suggested Flickr.

Musea form submissionSep 15, 2026

Asked Muse to append to a finance spreadsheet: go through email for payments after September 4th, open the budgeting spreadsheet, and append them to the bottom in chronological order following the existing template.