SMS

We support up to 10 attachments, as long as the total size of the message body text and all attachments is less than 5 MB.


Carrier also has limits. The average is 300kb-600kb and can go up to 3.5MB for tier 1 providers (AT&T/Verizon, etc.)


These image file types are supported:

  • jpeg
  • png
  • gif

Note: As of May 2021, there is an issue with Toll-Free MMS file size support; for these numbers, you must ensure that any attachments (including images) are 600kb or smaller.



Email


Mailgun supports maximum messages size of 25MB.



More information:

https://support.twilio.com/hc/en-us/articles/360018832773-Twilio-Programmable-SMS-Supported-File-Types-and-Size-Limits-for-MMS-Media-Messages