---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/glossary/drops#article
headline: Drops
description: "*Email Deliverability*. The removal of an email message to a specific recipient to protect the sender's reputation."
url: https://www.twilio.com/docs/glossary/drops
inLanguage: en
dateModified: 2026-05-06T13:22:30.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# Drops

*Email Deliverability*. The removal of an email message to a specific recipient to protect the sender's [reputation][ers].

Some [email service providers (ESPs)][esp] maintain email lists that track bounces, spam reports, and unsubscribes for each user. If you try to send a message to an email address exists on one of these lists, the ESP drops the message.

[ers]: /docs/glossary/email-reputation-score

[esp]: /docs/glossary/email-service-provider