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  1. Sinch MessageMedia
  2. FAQs
  3. Sending & Receiving FAQs

Sending & Receiving FAQs

  • Can I search for specific numbers and contacts in the inbox?
  • Can I send video?
  • How do I add emojis to my SMS messages?
  • How do I create a message signature?
  • How do I exclude the subject line from Email to SMS messages?
  • How do I send a message to all of my contacts at once?
  • How do I stop my email signature or disclaimer being sent in my messages when sending via Email to SMS?
  • Is there a limit to the size of the CSV file I can upload?
  • The inbox looks different and some features are missing?
  • What Alpha Tags are likely to be blocked from sending to the UK?
  • What is a Long Code?
  • What is a Short Code?
  • What is the difference between deleting and unsubscribing a contact?
  • Where do my inbound messages go?
  • Which countries support Alpha Tags?
  • Why are there Unicode characters in my messages?
  • Why can't I edit a contact?
  • Why has my message failed to send?
  • Why should I configure an automatic top-up on my pre-paid account?
  • Will I be charged for sending messages to an unsubscribed contact?
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