Alternatives

Alternatives to AgentMail

5 Email Clients & Email AI rivals, ranked by the same evidence-graded leaderboard — AgentMail itself ranks #1 with a PA Score of 46/100. Every “beats AgentMail on” below comes from a judged head-to-head round with cited evidence — see the methodology.

#2
Zero
Zero Email Inc. (Mail-0 open-source project)
PA Score 28/100vs AgentMail →
coverage
23.2/100
Beats AgentMail on: Self-host the core product · Read the product's source under an open license
#3
Missive
Missive (Conference Badge Inc.)
PA Score 24/100vs AgentMail →
coverage
26.2/100
Beats AgentMail on: My team works shared inboxes together — shared accounts or team channels where everyone sees the same conversation state · Insert saved snippets or templates — with variables and attachments — instead of retyping the same reply
#4
Superhuman Mail
Superhuman (formerly Grammarly)
PA Score 24/100vs AgentMail →
coverage
29.8/100
Beats AgentMail on: AI drafts replies in my own voice and tone — ready to review and send, not generic boilerplate · AI triages my inbox for me — auto-labeling, categorizing, and surfacing what needs attention — with behavior I can steer and audit
#5
Shortwave
Shortwave (ex-Google Inbox team)
PA Score 22/100vs AgentMail →
coverage
24.7/100
Beats AgentMail on: AI triages my inbox for me — auto-labeling, categorizing, and surfacing what needs attention — with behavior I can steer and audit · Ask an assistant questions across my whole inbox and calendar — who said what, what's outstanding — and get grounded answers
#6
Fastmail
Fastmail Pty Ltd
PA Score 14/100vs AgentMail →
coverage
17.8/100
Beats AgentMail on: Schedule an email to send later and undo a send within a grace window · Do everything from the keyboard — comprehensive shortcuts and a command palette — in an interface fast enough to never make me wait

Full leaderboard: Email Clients & Email AI arena →