If your organization's subscribers are not receiving emails sent from Marketing Cloud Engagement, the issue is typically caused by one of the following: the message being caught by a spam filter, routed to a "Bulk" or "Spam" folder, delayed by the receiving mail server, or blocked at your organization's own email domain level.
This article explains how to diagnose each scenario and the recommended steps to resolve them — including how to work with your IT team to allowlist Marketing Cloud sending IPs.
This message may sit in quarantine or even be deleted depending on the brand, version, or administration settings of the filter in use.
Many email clients automatically place messages into the "Bulk" or "Spam" folder if the email sender's "From Address" isn't in the recipients Address Book or Safe Senders List. Review your email client's support for help filtering emails correctly.
Even if the message was accepted by the server, it may not have been delivered to the recipient due to email volume, server maintenance, or network problems. Contact your email administrator to verify if you are experiencing any internal issues.
When experiencing deliverability issues to recipients within your own organization's domain, your IT team's mail gateway or spam filter is likely blocking or quarantining the message before it reaches the inbox.
The recommended fix is to work with your IT team to allowlist the Marketing Cloud Engagement sending IP addresses at your mail gateway level. This ensures messages from Marketing Cloud bypass your internal spam filters.
If you don't know your Marketing Cloud sending IP addresses, log a case with Marketing Cloud Engagement Support and include your Account MID. Support can confirm your dedicated or shared IP ranges.
Note: If you use a Sender Authentication Package (SAP), your sending IPs may be dedicated.
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