RelayMailPricing

RelayMail vs Suptask for answering email in Slack

Suptask and RelayMail get email into Slack the same way: you add a forwarding rule on your support address, each new email shows up in a Slack channel, and a reply in the thread reaches the customer as an email. Neither one connects to your mailbox.

The difference is what sits around the thread. Suptask is a ticketing tool for Slack: each email becomes a ticket, and plans are priced per agent. RelayMail stays a relay: each email is a thread, and you pay per inbox, however many teammates reply.

RelayMail
Suptask
Reply from a Slack thread
Yes
Yes
How it gets your email
A forwarding rule
A forwarding rule
Each email becomes
A Slack thread
A ticket in Slack
Pricing model
Per inbox, no seat fees
Per agent
Entry price
$15/month per inbox (1,000 threads)
Starter $15 per agent per month billed annually, $18 billed monthly
Replies from your own address
After you verify your domain
After you set up a custom domain

Tickets or threads

If your team needs ticket statuses, assignment and the other parts of a help desk, but wants all of it inside Slack, that is what Suptask is built for. Email is one of its channels.

If what you want is for the people already in a channel to see customer email and answer it in a thread, RelayMail does that and little else. There is nothing to triage and no agent seats to manage.

What it costs as the team grows

Suptask charges per agent, so the bill grows with the number of people who answer. RelayMail charges per inbox by monthly volume: Starter covers 1,000 threads a month, Team 3,000, Pro 10,000, with any number of teammates replying.

When Suptask is the better pick

  • ×You want tickets with statuses and assignment inside Slack, not just threads.
  • ×One person answers support; Suptask Starter is $15 per agent per month billed annually.
  • ×You want to try it without entering a card: Suptask lists a 14-day trial with no credit card required.

When RelayMail is the better pick

  • ✓Several people answer from the channel and you would rather not pay per agent.
  • ✓You want email in a plain Slack thread, with no ticketing to learn.

Questions

Do both work without connecting the mailbox?

Yes. Both use a forwarding rule on your support address, so neither asks for your email password.

Try RelayMail on your real inbox for 14 days

$0 today, then from $15/month per inbox. Cancel in Billing before day 14 and you pay nothing.

See plans and start the trial

Updated 2026-11-07. How we check these pages. Sources:

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