diff --git a/sparkpost_and_mailtrap.md b/sparkpost_and_mailtrap.md
index b36a5d3d..3575e069 100644
--- a/sparkpost_and_mailtrap.md
+++ b/sparkpost_and_mailtrap.md
@@ -42,7 +42,7 @@ Always use subaccounts for the project, so that the whole account doesn't get su
    the subaccount. Set up SPF, DKIM and DMARC with TXT DNS records (only use
    `renuoapp.ch` within the `sparkpost+develop@renuo.ch`)
 1. Verify your Email DNS configuration with <https://mxtoolbox.com/SuperTool.aspx>
-1. Set up your ENV-variables and test if the mails are working. Manual test emails can be send via the following command in the rails console (production environment): `ActionMailer::Base.mail(to: 'yourname@renuo.ch', from: ENV['MAIL_SENDER'], subject: 'Testmail', body: 'Mail content').deliver_now!`
+1. Set up your ENV-variables and test if the mails are working. Manual test emails can be send via the following command in the rails console (production environment): `ActionMailer::Base.new.mail(to: 'yourname@renuo.ch', from: ENV['MAIL_SENDER'], subject: 'Testmail', body: 'Mail content').deliver!`
 1. Send a test email to <https://www.mail-tester.com/> or <https://www.experte.com/spam-checker> and check the result
 
 For DNS setup also see [Go Live](go_live.md)