zammad/app/frontend/apps/desktop/entities/channel-email/graphql/mutations/channelEmailValidateConfigurationOutbound.graphql

mutation channelEmailValidateConfigurationOutbound(
  $outboundConfiguration: ChannelEmailOutboundConfigurationInput!
  $emailAddress: String!
) {
  channelEmailValidateConfigurationOutbound(
    outboundConfiguration: $outboundConfiguration
    emailAddress: $emailAddress
  ) {
    success
    errors {
      ...errors
    }
  }
}