You'll need to add SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC records to verify ownership of your sending domains before you can send email through your account. Retently is not able to send any email from unverified domains or domains without valid records, including public domains like gmail.com, yahoo.com, and more.
Although this seems too complicated for a non-technical person, the process is straightforward and is required in order to have your surveys delivered to the respondent's Inbox.
To get started, you will need to add the following records in your hosting provider, domain registrar, or DNS provider.
SPF Record
If you don't yet have an SPF record, add one for your domain, and make sure it's of type TXT. At a minimum, the value should be the following if you're only sending mail through Mandrill for that domain: v=spf1 include:spf.mandrillapp.com ?all.
If you already have a TXT record with SPF information, you'll need to add Mandrill's servers to that record by adding include:spf.mandrillapp.com in the record (before the last operator, which is usually ?all, ~all, or -all).
DKIM Records
Add the following records:
Record 1:
Type: CNAME
Name: mte1._domainkey.yourdomain.com (replace yourdomain.com with the domain or subdomain you're setting up)
Value: dkim1.mandrillapp.com
Record 2:
Type: CNAME
Name: mte2._domainkey.yourdomain.com (replace yourdomain.com with the domain or subdomain you're setting up)
Value: dkim2.mandrillapp.com
DMARC Record
Create and save a TXT record in your DNS with the following data:
name: _dmarc.yourdomain.com
and value: v=DMARC1; p=none
IMPORTANT: If your domain already has a DMARC record, DO NOT modify the value of the existing record, especially the “p=” part. Leave whatever was already written there.