Gmail FAQ

Why does Gmail clip my email content? 

Gmail clips your email campaigns if their HTML size is larger than 102KB.

HTML size is an email's source code, which is anything that you can see when you go to Utilities > Edit source in EasyEditor.

Note: The HTML size doesn't include the pixel size of your images because images are downloaded from the server when a recipient opens a campaign. However, HTML size does include any HTML tags that include the link to an image.

If the HTML size of your campaign is larger than 102KB, Gmail displays only 102KB of it and provides a link to the rest of the message at the bottom of your campaign.


When you click the 'View entire message' link, a new window opens, which ignores any CSS media queries in your email campaign. As a result, your campaign may be rendered for mobile view. Therefore, we recommend that you test send your email to check how Gmail will display your email campaign.

You can check the HTML size of your email campaign by doing one of the following:

  • Look at the 'Check and send your campaign' page just before you send your campaign
  • Click the Summary icon in campaign listings
  • Click the Send step in the campaign creation process

The screenshot below indicates when a campaign's HTML size is considered too large.


The screenshot below indicates when a campaign's HTML size is considered optimal.

FAQ_send_campaign_HTML_content.pngIf you want to stop Gmail from clipping your email campaigns, try reducing the amount of source code in your campaign by doing the following:

  • Remove any unnecessary building blocks from your campaign (for example, remove nested tables or use one or two columns instead of three)
  • Reduce the number of characters in the URLs of your images

Or, if you want some help with reducing the source code in your campaign, contact us.

Why does Gmail put my email campaigns in the 'Promotions' tab?

Google uses algorithms to find patterns in email content. These patterns are used to assign emails to one of the following tabs:

  • Primary
  • Social
  • Promotions

Unfortunately, you can't control which tab Google assigns to your email campaigns. But, you can ask your recipients to create a filter that categorises your emails as 'Personal' so that they are always assigned to the 'Primary' tab.

Have more questions? Submit a request


  • Avatar

    What can dotmailer do to streamline the html within the builder. I've only got several nested tables and its already truncating within gmail. We have to resort
    to just using all images within our emails because the html is far too heavy otherwise.

    Edited by Jonathan Kirk
  • Avatar

    Hi Jonathan,

    We recommend that you don't use only images in your email campaigns because doing so is not best practice and may cause email clients to mark your campaigns as spam.

    If you need some help to reduce the HTML size of your email campaigns, please feel free to contact our support team who can give you specific advice about your campaign: