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Send personalized emails at scale

Send personalized, tracked mass emails and follow-up sequences in Gmail.
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Streak Mail Merge in Gmail with personalized variables and follow-up automation.

Need to send mass personalized emails?

Use mail merge to send tailored messages at scale with automatic follow-ups.

Personalize messages for higher response rates

Send personalized individual emails to hundreds of recipients in just a few clicks. Address recipients by first name, reference their company, or include different types of data from your pipeline.

Draft email window with personalized variables inserted and a dropdown showing variable options for use in mail merges.

Prevent that faux pas with smart email alerts

Never send a cold outbound message to a recipient your team has already emailed. Streak alerts you if your team has ever emailed with a recipient and shows you a timeline of your team's communication history.

Mail merge interface showing a recipient list with a warning alert for a contact who was recently emailed, alongside a See history link.

Built in email tracking to see who’s opened your email

Receive a notification when any email is viewed, and see exactly when each one was last opened and the total number of views, so you know who to follow up with next.

CRM pipeline view showing a list of contacted leads with the date and time of their last tracked email view highlighted.

Schedule and automate follow-ups at the right time

Schedule follow-up emails to increase engagement if recipients don't reply to your first message. When a recipient replies, they'll be excluded from the remaining messages so you can respond to them personally.

Automated email sequence editor showing multiple follow-up messages scheduled with delays based on recipient replies.

See how your emails are performing in one view

See engagement and performance data for your campaigns, like the number of recipients who viewed and replied. Track link clicks and compare which mail merges perform better.

Streak dashboard showing mail merge stats like sent, viewed, clicked, replied, and unsubscribed emails, alongside individual email statuses.

Target your recipients with organized lists

Want to send a follow-up to specific recipients? Import your contacts into a pipeline to keep them organized. Filter and sort them based on any criteria and send your next mail merge to a targeted list.

Gmail sidebar with Streak’s CRM pipeline and lead selection UI, showing selected leads being added to a new or existing mail merge.

Customize your outreach with advanced controls

Configure your mail merge follow-ups to start a new thread, pause on replies, ignore out-of-office and vacation messages, send as a marketing sequence, or add an unsubscribe link.

Advanced settings in a Streak mail merge, with toggles for reply detection, auto-responder handling, and unsubscribe links, annotated with helpful tips.

Use our email power tools for free, forever

Supercharge Gmail with tools that help you track, send, share, and manage emails — all built into Streak, and always free.

Learn more about Streak mail merge

See how to send personalized emails at scale with just a few clicks.

Create a mail merge

Streak University

Scale up your email efficiency and follow up by sending personalized mass emails to contacts in your pipeline or a CSV email list.

In this video, you’ll learn how to:  

  • Send a mail merge two different ways: to contacts in your pipeline or by uploading a CSV file
  • Personalize your message with custom variables
  • Test your message before sending it to recipients
  • Incorporate pro tips and best practices