Secure email

for Microsoft 365

Other email software makes you upload your valuable customer data to their servers for processing. Can you really trust them to keep it secure?
We are privacy first email software. None of your data ever touches any of our servers.
We generate your emails on your own computer and send them via your own mailbox.

Everything you need to send mass email from Outlook

Personalized email campaigns with attachments and images.

Use any Excel spreadsheet or your address book to personalize your email. Send a test email to verify your personalization before sending your campaign.

Simplify everyday business tasks.

Because you’d probably be a little confused if we suggested you complicate your everyday business tasks instead.


Campaigns are generated 100% inside your own Outlook, no data leaks.

Other email marketing services require you to upload your customer data to their servers to generate your emails. That's a security risk and great leap of faith you put on them, their team and their infrastructure.

Sending to the max

No restrictions on number of emails or size of attachments.

Instead of arbitary limits we just let you send whatever you organisation's mailbox lets. In general that means you can send up to 10.000 emails per day which is the default Microsoft 365 limit.

Full Control

Pause, resume or cancel campaigns sending at any time.

Need to restart your computer, change rooms and lose internet connectivity or just want a lunch break? No problem, you can resume sending a campaign simply by starting the add-in again and pick up where you left off.

Get started today

It’s time to take super charge your email outreach. Install SecureMailMerge for Microsoft 365 today.

Install for free from Microsoft AppSource

Why would you use us?

Not only simple to use directly from Outlook, but real concerns about data privacy and security let users choose us.

    • I need to comply with GDPR and not just give out my customer spreadsheet to anyone, but I still want to automate my email campaigns.

      is worried about GDPR
    • Microsoft 365 is HIPAA compliant, but all those email marketing services are not. I just want to use what I already have and know is secure to contact my patients.

      is looking for HIPAA compliance
    • I can't afford any kind of client information leaking out to anyone but I have a class action lawsuit to file and get answers from thousands of people.

      needs to respect the law

Simple pricing, for everyone.

It doesn’t matter what size your business is, our software will work well for you.

Non-commercial use

If you just need to send out a bunch of emails quickly


  • Send unlimited campaigns, emails or attachments*
  • Send-as other accounts
  • Send for free with our promotional footer
Download for free from Microsoft AppSource

Commercial use

For professional users and companies that want to reach their audience

$10per month and user

  • Send unlimited campaigns, emails or attachments*
  • Send-as other accounts
  • Send without our promotional footer
  • Credit Card or PayPal paments
  • or pay via Microsoft 365 subscription (discounts available for 10+ users)
Purchase license

*We do not restrict the number of campaigns, emails or attachments,

but the limits in Microsoft 365 or any limits set by your organisation still apply.