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Adding email unlocks another 100 daily sends per sender and gives you an inbox-native channel. Reply threading is native — replies land back in your Gmail / Outlook the way they always do, plus in Guhan’s Inbox.

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Supported providers

  • Google Workspace — @yourcompany.com hosted on Google
  • Personal Gmail — @gmail.com addresses
  • Microsoft 365 — @yourcompany.com hosted on Microsoft
  • Personal Outlook / Hotmail — @outlook.com, @hotmail.com

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Steps

1

Go to Settings → Sender accounts

Sidebar → Settings → Sender accounts.
2

Click + Connect

Top-right. Choose Google (Gmail) or Microsoft (Outlook).
3

Sign in on the provider's page

Google or Microsoft OAuth screen — sign in with the email account.
4

Allow requested scopes

Guhan needs:
  • Send email as you — for outbound
  • Read email threads — for reply capture
  • Calendar read + write (if you connect this as your calendar too)
Approve to continue.
5

Confirm the sender appears

You’ll be redirected back. Your email sender shows with an Active dot.

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What Guhan sees

Guhan reads:
  • Emails matching outbound threads (to detect replies)
  • Calendar availability (if calendar scope granted)
Guhan does NOT read:
  • Unrelated inbox threads
  • Your archive
  • Attachments not tied to Guhan-sent messages

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What Guhan sends as

Every email goes out with:
  • From — your name + your email address
  • Reply-to — same address (replies come back to your inbox)
  • BCC — none. Every email is a real 1:1 thread.
No mailing-list headers. No “unsubscribe” footer added by Guhan (you add it in Brand & Voice if you want one).

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Email vs. LinkedIn

Trade-offs:
LinkedInEmail
Daily volume25 invites + 30 DMs~500 sends
Reply rateTypically higherTypically lower (depends heavily on your list quality and message)
Requires connection firstYes (invite step)No
DeliverabilityAlmost 100% (in-app)Depends on your domain reputation
Reply feelChat-likeEmail-formal
Most workspaces use both — LinkedIn to initiate, email as a fallback channel a week later.

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Calendar integration

If you connect Google or Outlook as a sender, Guhan asks whether to ALSO use it as your calendar. Say yes → meeting bookings write directly to this calendar. You can also connect a calendar without a sender (e.g., Cal.com booking URL). Details on the Meetings concept page.

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Warm-up

Same 30-day ramp as LinkedIn:
  • Day 1–7: 30% of daily cap (~30 sends/day)
  • Day 8–14: 50%
  • … etc.
Established senders (accounts > 30 days old + regular use) skip warm-up.

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What if the OAuth fails?

Some Google Workspace admins restrict third-party OAuth. Ask your admin to allow Guhan (unipile.com is the underlying OAuth partner).
Rare tenant-config issue. Contact hello@guhan.ai — we’ll walk your admin through it.

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Reauth

If you change your email password, Guhan gets locked out until you re-authorize.
  • You’ll see a banner at the top of the app: “Your Gmail account needs re-authentication”
  • Click it OR go to Settings → Sender accounts → [account] → Reauth
  • One click through OAuth → back in business
In-flight email steps hold in place until reauth completes.

Sender accounts

Full concept + safety details.

Meetings

Calendar setup.