Editing Why emails may be delayed (section)

== Configuration Options and Settings ==

While there are no specific configuration options related to email delays explicitly mentioned, it's important to be aware of the scenarios outlined below that can lead to delays:

* **Slow or overloaded mail servers**: This occurs when there is heavy traffic, whether due to high volume or spam filtering.
* **Reputation-based deferrals**: These may manifest as temporary errors (4xx responses) indicating that messages are rate-limited. ActiveCampaign will attempt delivery for up to 72 hours before discarding the message.
* **Mailbox Providers and ISPs connection limits**: Mailbox providers have specific rules regarding connection volumes and message throughput.
* **Pre-send processing**: Technical issues arising from complex segments or large contact lists can lead to delays.
* **Compliance campaign approval process**: All campaigns go through an approval process, which can cause initial delays.