--- title: Why is the number for emails delivered and emails received different? What affects these numbers? description: Over time, you will notice that the number of emails delivered will become increasingly less than the number of recipients to which you are sending your message. This occurs because previously bounced --- [Skip to content](https://knowledge.contentmx.com/number-delivered#main-content) [Contact Support](https://knowledge.contentmx.com/kb-tickets/new?hsLang=en) Open main navigation Close main navigation - [Contact Support](https://knowledge.contentmx.com/kb-tickets/new) Welcome! What can we help you learn today? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://knowledge.contentmx.com/?hsLang=en) 2. [Sending Emails](https://knowledge.contentmx.com/sending-emails?hsLang=en) 3. [Email FAQs and Troubleshooting](https://knowledge.contentmx.com/sending-emails?hsLang=en#email-faqs-and-troubleshooting) # Why is the number for emails delivered and emails received different? What affects these numbers? Over time, you will notice that the number of emails delivered will become increasingly less than the number of recipients to which you are sending your message. This occurs because previously bounced email addresses are considered "undeliverable" by the server and subtracted from a mailing. For example, if you have a list of 1,000 recipients and 20 emails "permanently" bounced on the first mailing and then 10 emails bounced on the second mailing, on the second mailing the delivered statistic would be somewhere around 970. **NOTE:** Do not try to do the math. The mail server reports delivery confirmations and bounces separately. It is possible for a message to produce no bounce or delivery confirmation. It is also possible for an email to “temporarily” bounce or be blocked by a spam filter. In this case, an email might bounce the first time, but be successfully delivered the second time.   - [Getting Started](https://knowledge.contentmx.com/getting-started?hsLang=en#main-content) - [Featured](https://knowledge.contentmx.com/getting-started?hsLang=en#featured) - [Account Management](https://knowledge.contentmx.com/getting-started?hsLang=en#account-management) - [Channels and Content](https://knowledge.contentmx.com/getting-started?hsLang=en#channels-and-content) - [Webinar Series and Quick Tip Videos](https://knowledge.contentmx.com/webinar-series-and-quick-tip-videos?hsLang=en#main-content) - [Getting Started Videos](https://knowledge.contentmx.com/webinar-series-and-quick-tip-videos?hsLang=en#getting-started-videos) - [Quick Tip Videos](https://knowledge.contentmx.com/webinar-series-and-quick-tip-videos?hsLang=en#quick-tip-videos) - [powered by PartnerOn](https://knowledge.contentmx.com/webinar-series-and-quick-tip-videos?hsLang=en#powered-by-partneron) - [Paths to Success](https://knowledge.contentmx.com/webinar-series-and-quick-tip-videos?hsLang=en#paths-to-success) - [Sharing to Social Media](https://knowledge.contentmx.com/sharing-to-social-media?hsLang=en#main-content) - [Social Media How-Tos](https://knowledge.contentmx.com/sharing-to-social-media?hsLang=en#social-media-how-tos) - [Social Media FAQs](https://knowledge.contentmx.com/sharing-to-social-media?hsLang=en#social-media-faqs) - [Sharing to your Blog or Website](https://knowledge.contentmx.com/sharing-to-your-blog-or-website?hsLang=en#main-content) - [Microsite](https://knowledge.contentmx.com/sharing-to-your-blog-or-website?hsLang=en#microsite) - [WordPress](https://knowledge.contentmx.com/sharing-to-your-blog-or-website?hsLang=en#wordpress) - [Sending Emails](https://knowledge.contentmx.com/sending-emails?hsLang=en#main-content) - [Getting Started with Email](https://knowledge.contentmx.com/sending-emails?hsLang=en#getting-started-with-email) - [Email Network Connections](https://knowledge.contentmx.com/sending-emails?hsLang=en#email-network-connections) - [Customizing your Emails](https://knowledge.contentmx.com/sending-emails?hsLang=en#customizing-your-emails) - [Email FAQs and Troubleshooting](https://knowledge.contentmx.com/sending-emails?hsLang=en#email-faqs-and-troubleshooting) - [Lead Management and Promotions](https://knowledge.contentmx.com/lead-management-and-promotions?hsLang=en#main-content) - [Manage Leads and Opportunities](https://knowledge.contentmx.com/lead-management-and-promotions?hsLang=en#manage-leads-and-opportunities) - [CRM Integrations](https://knowledge.contentmx.com/lead-management-and-promotions?hsLang=en#crm-integrations) - [Gated Content and Promotions](https://knowledge.contentmx.com/lead-management-and-promotions?hsLang=en#gated-content-and-promotions) - [Buy Signal](https://knowledge.contentmx.com/lead-management-and-promotions?hsLang=en#buy-signal) - [Leads and Purchase Intent](https://knowledge.contentmx.com/leads-and-purchase-intent?hsLang=en) - [Contact Support](https://knowledge.contentmx.com/contact-support?hsLang=en) - [Sharing your Content](https://knowledge.contentmx.com/sharing-your-content?hsLang=en#main-content) - [Social Media Tips](https://knowledge.contentmx.com/sharing-your-content?hsLang=en#social-media-tips) [![Chill listening crop-3](https://knowledge.contentmx.com/hs-fs/hubfs/contentmx_logo_transparent_trace-3.png?width=154&height=24&name=contentmx_logo_transparent_trace-3.png "Chill listening crop-3")](https://www.contentmx.com) Knowledge Base Copyright © 2026, Powered by ContentMX