Does Microsoft impose a CAPTCHA on admins of small email services before accepting email, like Google does?
Does Microsoft impose a CAPTCHA on admins of small email services before accepting email, like Google does?
The rumor I heard was that if you operate a small email service and need to get Google to recognise your server and accept inbound email for gmail recipients, admins of those services must do a dance and go through various hoops like solving a CAPTCHA before their server’s IP address is whitelisted. (Is that true? I have never tried.)
Question 1:
Does Microsoft do the same thing as Google? Are there any hoops or obsticles to getting MS’s mail server to accept mail from a new mail server?
Question 2:
If an admin of a small service decides to do the same, and force sending servers to solve a CAPTCHA to get whitelisted, what does Microsoft do when their server encounters that barrier? Is there reciprocity, or does MS just do the bullying that it does and simply let outbound MS email get blocked at the destination?
I never had to do anything special besides standard Email security setup for any domain I run.
I don't go out of my way to send email to Gmail accounts.
But the requirements I've encountered from Gmail were just modern email server headers and such, as was already mentioned by
sqw.Does that mean you allow Google to block you? Or that Google is permissive for you and does not require a CAPTCHA?
I personally will not go out of my way in the slightest. Running a mail server from a residential IP with no spf/dmarc/dkim ensures that MS always refuses my email and Google refuses it /most/ of the time. And I am fine with that. To be clear, I am not asking to change that. My question is political. I want to know what MS is putting small email operators through, when they are willing to send to MS recipients.
I would like to hear from a server admin who has had to solve a CAPTCHA in order to get mail from their server accepted.
I just setup SPF, DMARC and DKIM.
Last time I checked, it was enough to send email to Gmail accounts.
But my disclaimer is that much of my social network has DeGoogled, so I wouldn't be the first person to notice if Google's rules changed.
Edit: there's vanishingly few organizations that accept email without SPF, DMARC and DKIM. My own email server doesn't accept it, by my own configuration. I get too much spam, otherwise.