Automated emails such as the ones sent through Trustmary, can often be accidentally sorted into the spam folder of the receiver. As this usually means your customers will not see the survey you tried to send them, it is highly recommended to customize the email itself to avoid the spam folder.
The factors through which you can affect email deliverability when sending through Trustmary are:
List quality: use only valid emails
Message: be punctual with spelling and avoid phrases that are often used in spammy emails like "FREE" etc.
Domain you send from and it's reputation
The exact email address inside the domain, we highly recommend to use an email address with a name. "[email protected]" emails and similar get flagged as spam more often.
Adding an SPF record
Depending on the factors above, from our tests we have seen that usually from the mails sent through our system 81,4%–98,6% will be delivered straight to the customers mailbox.
If you are having trouble with deliverability you should test:
List quality: make sure that the emails you have in your list are valid
Try different messages and test if it affects the deliverability
Try sending from different email addresses to see if it affects deliverability
Try adding an SPF record
You should expect +95% deliverability straight to inbox if:
List has only valid emails
Your message does not get flagged as spam
SPF record can dramatically improve your deliverability. If you are sending emails through Trustmary with your domain, you can add this to your domain as the SPF record:
v=spf1 include:amazonses.com ~all
Alternatively, if you already have another SPF record you can add this as the SPF record:
v=spf1 include:email.com include:amazonses.com ~all
You can check your domains existing SPF records here: mxtoolbox.com