My site is on a shared server (Bluehost) but my MX records are pointing to fastmail. It looks like this in cPanel:
MX (Mail Exchanger)
Priority Host Record Points to TTL ACTION
10 @ in1-smtp.messagingengine.com 14400
20 @ in2-smtp.messagingengine.com 14400I can send and receive emails no problem.
In MailPoet > Send With... > SMTP Hostname I have box905.bluehost.com
(This is the only way I can send email from the MailPoet plugin. I tried setting it to fastmail's one (mail.messagingengine.com), which worked when sending from my local development server, but from the live site I get an error every time: "SMTP Error: Could not connect to SMTP host. " I searched many forum posts to find that this is just something with the way Bluehost shared servers are set-up. I contacted their support who not only couldn't help but were rude in the process.)
The only problem is that when I test a newsletter with mail-tester.com, my server IP address is listed in two blacklists. The address is 67.222.38.55, which I checked is Bluehost, not fastmail.
Since I am limited in what I can put in the SMTP Hostname in the MailPoet plugin, am I staring at a brick wall? Am I at the mercy of whether my particular shared server has accounts sending spam and therefore getting me blacklisted? Even if I pay for a service like elasticemail, I will not be able to put their SMTP hostname in the MailPoet settings.
My mail-tester score is 7.5. (This is partly because I haven't fully worked-out DKIM keys, so -1 for that.)