ARC-Relay alternatives

Tools that do what ARC-Relay does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from ARC-Relay.

Read 2026-10-27 · ARC-Relay itself: Free plan · From $12/mo

With a free plan or free to use: Inbox Zero, Temp Mail, HideMail App, inboxes.net, Figma, Superhuman, Maylee.

10 alternativesUnlike ARC-Relay

#1
Inbox Zero Productivity
Sorts Gmail and Outlook inboxes with an assistant that labels, archives and drafts replies by your rules, and bulk-unsubscribes from newsletters.
Open sourceCan run on your servers
27.8k
Active
From $18/user/mo
#2
PO6 Productivity MCP · sign-in
Forwards mail from short po6.com aliases to your inbox and lets MCP-compatible AI agents read, compose and organize it.
CheaperAlso: Agents
54
From $1/mo
#3
Temp Mail Productivity MCP · sign-in
Generates throwaway inbox addresses that receive incoming mail for a short lifetime, then delete it automatically.
More widely used
367k
Maintained
#4
Fat Heron Mail Productivity MCP · sign-in
Sells custom email addresses on themed domains, either forwarding to your inbox or as full send-and-receive mailboxes.
Same job
Little sign of use
#5
Mailyond Productivity MCP · sign-in
Reads and replies to email across all connected domains in one inbox, and sends transactional mail through one API.
Also: Agents
5
From $10/mo
2026
#6
HideMail App MCP · sign-in
Generates random forwarding email aliases that pass incoming mail to your real inbox and can be disabled with one click.
CheaperAlso: Security
65
From $4/mo
#7
inboxes.net Productivity
Provides an inbox interface for reading and managing emails sent through Resend, with threading, search, and scheduled sending.
CheaperMore widely used
46 linking domains
From $5/mo
#8
Figma Productivity MCP · sign-in
Collaborative canvas for drafting and prototyping interface designs, with a dev mode that turns designs into code.
More widely used
11.3M
Active
2012
#9
Superhuman Productivity
Email client and AI workspace that automates drafting, scheduling, and task management across applications.
Also: Workflow automation, Chat assistantMore widely used
117k
Active
From $15/user/mo
2009
#10
Maylee Productivity MCP · sign-in
Email client that unifies IMAP, Google and Microsoft mailboxes, labels incoming mail and drafts replies from your past replies.
Costs moreAlso: Writing, Workflow automation
345
Active
From $17/mo

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How this list is made: the words ARC-Relay is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.