Hi,
Thanks for that email.
Having closely looked at the headers there is nothing to indicate why this message was sent to Spam/Junk. Whilst this is unusual it is not unheard of.
The message sender domain and IP was validated via your SPF records and the DKIM check passed, indeed the email was fully DMARC compliant.
A good resource for bulk sending to gmail can be found at the link below:
https://support.google.com/mail/answer/6227174?hl=en&vid=1-635789122382665739-3305764358
Additionally the following are important:
Authentication & Identification – https://support.google.com/mail/answer/81126?hl=en&vid=0-554721144709-1546921550637#authentication
Subscription – https://support.google.com/mail/answer/81126?hl=en&vid=1-635789122382665739-3305764358#sub
Unsubscribing – https://support.google.com/mail/answer/81126?hl=en&vid=1-635789122382665739-3305764358#unsub
Format – https://support.google.com/mail/answer/81126?hl=en&vid=1-635789122382665739-3305764358#format
Delivery – https://support.google.com/mail/answer/81126?hl=en&vid=1-635789122382665739-3305764358#delivery
Third-Party Senders – https://support.google.com/mail/answer/81126?hl=en&vid=1-635789122382665739-3305764358#thirdparty
Affiliate Marketing Programs – https://support.google.com/mail/answer/81126?hl=en&vid=1-635789122382665739-3305764358#affiliates
The biggest issue by far currently however is the number of failed emails due to No User Here which may lead recipient mail exchanges to believe your domain is sending emails randomly rather than through subscribe, validated users.
The best way around this issue is to build in some kind of email validation to your user lists whereby you can guarantee an email account exists (and wishes to be sent emails).
Looking into all of these things should help your message deliverability.
Please get back to us if we can provide further assistance with this.
#signature
#cut
