How It Works > Improving Deliverability
Improving Deliverability
SPF Records
To improve email deliverability, we recommend checking to see if the domain name of your business has an SPF record already setup. An SPF record for a domain name lists the mail servers that are allowed to send emails with a ‘From’ email address of @yourdomainname.com.
Most domain names do not have an SPF record already setup. To check if your domain name has an SPF record, please click on the following link, and search for your domain name.
Look for an entry of type ‘TXT’, where the record begins as ‘v=spf1’.
http://www.mxtoolbox.com/spf.aspx
If your domain name already has an SPF record, and the SPF record does not contain either +all or ?all, you should add the following to the SPF record: include:smtp2go.com For example, if your SPF record currently looks like this: To change your SPF record, you will need to contact your webhost. |
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If your domain name does not have an SPF record, you do not need to do anything.
You may wish to setup an SPF record at some point in the future, as a correct SPF record can help improve your email deliverability. Please also be aware that an incorrectly setup SPF record can harm email deliverability. If you are setting up a brand new SPF record, take particular care to mention every mail server that will be used to send emails. To avoid rejections, you should consider placing ?all at the end of your SPF record.
The following website explains the SPF syntax:
http://www.openspf.org/SPF_Record_Syntax
To test your SPF record's validity, you can use the following SPF validity checker:
http://www.kitterman.com/spf/validate.html
You can also test by sending a blank email (using smtpcorp.com as the SMTP server) to the following email address:
check-auth@verifier.port25.com
You will be emailed a report that will let you know if you have SPF setup correctly.