Like I said, I do not believe it was caused by your website.
Neither it was caused by such a low volume emails being sent to spam box.
Not having a rDNS record on the first place could have cause some issues, but still, being blacklisted is a bit too much IMHO.
This is my server https://www.mail-tester.com/web-YQmr4w
Not even 9 (most are email content issues), no DKIM, no DMARC and I use around 7 different domains (shared hosting) and not even one of my clients has issues sending emails (and a couple of my clients send around 200 emails each, every day).
Neither it was caused by such a low volume emails being sent to spam box.
Not having a rDNS record on the first place could have cause some issues, but still, being blacklisted is a bit too much IMHO.
This is my server https://www.mail-tester.com/web-YQmr4w
Not even 9 (most are email content issues), no DKIM, no DMARC and I use around 7 different domains (shared hosting) and not even one of my clients has issues sending emails (and a couple of my clients send around 200 emails each, every day).
My Sentora Resources
[Module] Mail Quota Count | Vagrant Box with Sentora
Graphic and Web Design. Development.
www.vanguardly.com
[Module] Mail Quota Count | Vagrant Box with Sentora
Graphic and Web Design. Development.
www.vanguardly.com