Message Attachment Requirements

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Accepted File Types

A number of different file types can be attached to a Campaign message or in Message Hub.

  • Image: .JPG, .PNG and .GIF
  • Application: .PDF, .VCF
  • Video: .mp4 audio + video
  • Text: .csv
  • Audio: .mp3, .mp4 audio

File Size Requirements

All files must be smaller than 1MB. If the file size is larger than 1MB, the file will not be delivered to the contact.

  • If you need to resize an image, we recommend using this free website. Although images up to 1MB are accepted, we recommend the image file size be between 250KB and 500KB.
  • In the scenario of non Image files we recommend to keep them below 600 KB.


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