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How to Use Dynamic Content in Your Emails

Last updated on May 18, 2026

Dynamic content transforms a single email into a personalized experience for every recipient. Instead of sending identical text to your entire list, Mailzzy automatically substitutes data from each contact's record into your email at the moment of sending — making each copy feel individually crafted.

How It Works

You place merge tags — short dynamic codes — inside your email where you want personalized data to appear. When Mailzzy sends the campaign, it reads each contact's record and replaces every tag with the correct value for that individual. If no data exists for a particular field, the tag is left blank without any visible error.

The Full List of Supported Tags

  • $FIRST_NAME — First name
  • $LAST_NAME — Last name
  • $CONTACT_NO — Phone number
  • $ADDRESS — Full address
  • $COUNTRY — Country
  • $CITY — City
  • $STATE — State or region
  • $POSTAL_CODE — Postal code
  • $TIME_ZONE — Time zone

High-Impact Places to Use Dynamic Content

  • Subject line — Personalized subject lines ("Hi $FIRST_NAME, this one's for you") stand out in a crowded inbox and consistently improve open rates.
  • Opening line — A greeting that uses the recipient's name creates an immediate sense that the email was written for them personally.
  • Location-specific references — Mentioning a contact's $CITY or $COUNTRY makes the content feel locally relevant without creating separate campaigns for each region.

Inserting Tags in the Editor

  1. Click inside a text block in the editor.
  2. Place your cursor where the dynamic data should appear.
  3. Type the tag — for example: Hello $FIRST_NAME,
  4. The tag shows as plain text in the editor. It resolves to real data when the campaign is sent.

Note: Before sending to your full list, send a test email using a contact record that has some fields missing. Confirm the email still reads naturally where data is absent.

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