> For the complete documentation index, see [llms.txt](https://docs.lightpost.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lightpost.app/core-concepts/groups/messaging-policies.md).

# Messaging Policies

View the subpages for specific content around messaging.

{% content-ref url="/pages/dbzVowFRoHSkuSANOVG3" %}
[Communication Use Policy](/core-concepts/groups/messaging-policies/communication-use-policy.md)
{% endcontent-ref %}

{% content-ref url="/pages/FEiJgzGDW6QosTu5T5Qp" %}
[SMS message length limits](/core-concepts/groups/messaging-policies/sms-message-length-limits.md)
{% endcontent-ref %}

{% content-ref url="/pages/O4bmyFeu515Jrc5wnoFY" %}
[Email Costs](/core-concepts/groups/e-mailing/email-costs.md)
{% endcontent-ref %}

{% content-ref url="/pages/oAngWhdyfhMYc4Cx2PS0" %}
[Numbers for SMS, MMS & Voice](/core-concepts/groups/numbers-for-sms-mms-and-voice.md)
{% endcontent-ref %}