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Configuring alert receivers

A receiver is nothing more than a fancy way of referring to a collection of notification integrations that can send out alerts through various channels. Out of the box, the Alertmanager supports the following integrations:

Email: Send out an email with alert details
Slack/Hipchat/WeChat: Post alert details to a chat service
PagerDuty/Opsgenie/VictorOps: Send a page notification to the SRE currently on call
WebHooks: An escape hatch for implementing custom integrations

When the Alertmanager loads its configuration file, it looks for the list of receiver definitions under the top-level receivers key. Each receiver block must adhere to the following schema:

name: <string>
email_configs:
  [ - <email_config>, ... ...

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