Every client's email,run from one place.

Duso Digital's platform for designing, sending, automating, and measuring email campaigns for every client we manage.

Autumn menu launch

Example campaign

Sending

Subject

Our autumn menu is here, and so is your table

Delivered

0.0%

Opened

0.0%

Clicked

0.0%

Delivery by daywarmup ramp

How a send works

From blank template
to finished report.

Design

Build in the drag-and-drop editor or write plain text. Save layouts as templates, set in each client's own brand fonts.

TextImageButtonBrand Sans

The season starts Friday

Hi Maren, we saved you a table. Reserve before the weekend fills up.

Reserve a table

Target

Import contacts by CSV, organize them into lists, and cap a send to a random sample when you want to test first.

guests-2026.csv
emailfirst_namelast_namecity
NewsletterImported by CSV
Private diningAdded by hand
Test sliceSend limit: 200 random contacts

Deliver

Send through Amazon SES, a client's Gmail, or their own SMTP relay, now or at a scheduled time. New senders warm up gradually.

Amazon SES
Gmail
SMTP relay

New sender warmup, emails per day

20
40
60
80
100
120
140
160
180
200
Scheduled for Tuesday, 9:00 AM

Measure

Deliveries, opens, clicks, bounces, and complaints are tracked for every campaign and every automated flow step.

Example report

Delivered

4,862

Opened

2,031

Clicked

356

Bounced

17

Top links

/reserve
/menu/autumn

Automations

Sequences that keep sending after you log off.

A flow enrolls contacts from a trigger, then walks each one through emails, waits, and branches at their own pace.

  1. Trigger

    Joins a list

    Or an n8n event arrives, or you enroll contacts by hand

  2. Send email

    Welcome

    Any template, from any of the client's senders

  3. Wait

    2 days

    Minutes, hours, or days between steps

  4. Wait for event

    Booking made

    Hold until it happens, with an optional timeout

  5. Condition

    Opened the welcome?

    Branch the rest of the sequence on what contacts did

Built for an agency with many clients.

A separate workspace per client

Contacts, senders, templates, and campaigns never cross between clients. Switch accounts without switching tools.

ContactsListsSendersTemplatesCampaignsFlowsAnalytics
ContactsListsSendersTemplatesCampaignsFlowsAnalytics
ContactsListsSendersTemplatesCampaignsFlowsAnalytics

Access by role

  • AdminEvery client and user
  • StaffOnly assigned clients
  • ClientTheir own workspace

Brand fonts, uploaded once

Add a client's fonts by file or URL and use them in every template.

Deliverability safeguards on by default

Every message carries List-Unsubscribe headers. Addresses that bounce or complain are suppressed before the next send.

One-click unsubscribeHard bouncesRepeated soft bouncesSpam complaints

Clients can connect their own Gmail account as a sender. Duso Mail only asks for permission to send.

It never reads, stores, or shares the contents of a connected inbox. Access tokens are encrypted and never leave our servers, and a client can disconnect at any time.

Read the Privacy Policy

Duso Mail

For Duso Digital staff and the clients we work with.

Log in