Setup SPF (Sender Policy Framework) for your domain for better email deliverability.
The following are some of the SPF records from popular email hosting solutions. You need to add them as a TXT record for your domain.
v=spf1 include:_spf.google.com ~all
v=spf1 mx include:zoho.com ~all
v=spf1 include:mailgun.org ~all
v=spf1 include:mail.zendesk.com ?all
v=spf1 include:spf.protection.outlook.com -all
v=spf1 include:emailsrvr.com ~all
"v=spf1 include:amazonses.com ~all"
v=spf1 include:secureserver.net –all
v=spf1 include:spf.messagingengine.com ?all
v=spf1 a include:sendgrid.net -all
v=spf1 include:spf.mailjet.com ~all
v=spf1 include:_spf.mlsend.com ~all
v=spf1 include:send.aweber.com ~all
If you need to add more than one then you can combine them by adding another in the single entry instead of adding them separately.
Ex – if you need to add G Suite and Mailgun, both then you can below.
v=spf1 include:_spf.google.com include:mailgun.org ~all
Once you are done with the implementation, you can use the SPF test to verify the record.