Mandrill is a transactional email API for Mailchimp users. It's reliable, powerful, and ideal for sending data-driven emails, including targeted e-commerce and personalized one-to-one messages.  


To enable Mandrill to send authenticated mail from your domain your SPF and DKIM settings must be enabled.


Table of Contents
  1. Mandrill SPF Setup
  2. Mandrill DKIM Setup
    1. With semicolons escaped:
    2. With semicolons unescaped:


1. Mandrill SPF Setup


Please note that the following SPF changes should only be applied to the Sendmarc record within Sendmarc and not the hosting provider.  


Include String
include:spf.mandrillapp.com ?all
Mandrill SPF Record
v=spf1 include:spf.sendmarc.com include:spf.mandrillapp.com ?all



2. Mandrill DKIM Setup


The value for the record should be one of the options listed below. There are two options because the record contains semicolons, and some DNS providers escape semicolons for you while others require you to do it when setting up the record.


2.1 With semicolons escaped:


mandrill._domainkey.<yourdomain.com>

TXT 

v=DKIM1\; k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB\;



2.2 With semicolons unescaped:


mandrill._domainkey.<yourdomain.com>

TXT 

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;



If you've added the DKIM record and are still seeing that it's missing, your DNS provider may require the record to be formatted differently. 


The DKIM record Mandrill provides has semicolons escaped with a backslash, so the record starts with this:


 v=DKIM1\; k=rsa\;


and ends like this:


 \;


Some DNS providers don't require semicolons be escaped. If you see issues, try removing the backslashes right before semicolons at the beginning and end of the record.


* Please ensure that you change <yourdomain.com> to the correct domain before publishing changes.