Thanks for your response.
I got into this email service provider stuff because the AliDropship Notification setup requires a choice of services. So I checked the reviews and found that the whole email service segment is a bit messy, with various levels of service, companies coming and going, varying levels of support, etc.
I've started to setup for Mailgun, waiting for DNS propogation, etc. What a mess.
If you check you will find that various of the services do indeed put their own logos on YOUR emails with their free accounts. Check Sendinblue's pricing page:
https://www.sendinblue.com/pricing/
Notice that you have to pay at least $39 per month to have them remove their logo from your email!
Sendinblue was looking like the best choice until I saw that. :-(
I don't know if Mailgun puts their logo on or not. It's too damn hard to get through to some of these guys. I don't have the time for it. Just want to get my site setup.
I think you are correct about mail security, DKIM, etc., being the main reason people tend to think the services are the best way to go. DMARC, DKIM, SPF are moving targets. Not everyone uses them yet.
In my opinion the email services offer free accounts because they know we don't really need them. They need to get us hooked before we do need them due to increased traffic or whatever. Their free accounts are not free.
I just checked and both my hosting services handle DMARC, DKIM and SPF. It's really a DNS thing, not a magical email service thing.
If you go to
cPanel -> Email Authentication you'll see the setup for these security features. DMARC requires some additions to the DNS table settings. It's all accessible via cPanel.
I found a setup tutorial for this stuff by googling 'hostgator dkim'. Replace 'hostgator' with your provider, worked for both of mine.
I don't fault AliDropship for punting on this. They have a huge job integrating the whole world of Ecommerce into a single plug-in. And it looks like they've done a pretty good job. But I think it would be nice if they were to support the WordPress default email channel. Most likely easier than handing all those services and their APIs.
WordPress also has a bunch of free SMTP plug-ins to improve on the default php mailer. Some with over half a million active installs. Good support. There are even free plug-ins to do newsletters and stuff. I suspect many folks that use email services don't really need them, and would be better off without them. Email is just not that hard. And services that charge according to the number of messages you send should have a very narrow appeal.
I'd much rather pay my hosting provider for increased capacity than pay a magical email service that makes my whole email system more convoluted, less accessible and less secure.
Thanks.