Are there really? I don't think I've ever encountered such a service in all the years I've been using an email address under my own domain. And blocking every email address that's not from a big provider means blocking basically everyone who tries to sign up with their company email, which might not be great for business.

▲ vitally3643 4 hours ago | parent | next [-]

I've been running my own mailserver on a firstnamelastname.com domain for nearly 15 years.

As far as I can tell, nobody blocks it. Google sometimes rejects emails where the from address doesn't match the real sending address, which is fair.

I guess the first couple of years were rocky, I hadn't figured out DKIM and SPF and all the other blood rituals yet. Back then I got blocked by Steam and banks. But ever since I set up the correct security it's been fine. Been my primary email for a long long time. All my online accounts are tied to it.

Incidentally, I also have free and unlimited aliases. But I don't usually bother because I have a rule to route all messages to unknown addresses into a special folder. I can give out any random address at my domain and it will always make it back to me. So much more convenient than logging into the website to generate an alias.

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bb88 3 hours ago | parent [-]

I did that too years ago, but the management of it was kind of annoying. DKIM was just getting introduced when I stopped using it. SPF had controversy. I understand both of those are awesome now.

The biggest issue was if your ip address got listed in a RBL (Realtime Blackhole List), and then nobody would talk to you. Some were easy to get off, others were permanent blocks, and I found those to be constantly interfering with the delivery of mail. At least the rejection would usually tell you which RBL blocked you.

	▲	janc_ 28 minutes ago \| parent [-]
		Most RBLs are scams. No competent mail admin uses them to block mail ever.

▲ xigoi 5 hours ago | parent | prev | next [-]

I recently tried signing up for DeepSeek using my custom-domain e-mail address and the website said the domain is “not supported”.

▲ dadadad100 4 hours ago | parent | prev | next [-]

Camel camel camel wouldn’t send notifications to my hidden email. Works fine for my regular vanity domain.

▲ kay_o 4 hours ago | parent | prev | next [-]

in asia it is frequent that email domain is a dropdown not a type in

	▲	gerdesj 4 hours ago \| parent [-]
		Asia is huge. Please be more explicit (if you can).

▲ lukeify 5 hours ago | parent | prev | next [-]

Within the last month both Mapbox and Etsy blocked my attempts to signup using a Proton Mail alias. How many services do you sign up for in recent years, on average? The practice is becoming incredibly common and more than likely you're just grandfathered in.

	▲	jbxntuehineoh 4 hours ago \| parent [-]
		are you sure they're not just blacklisting protonmail vs. whitelisting known providers? ime a lot of sites block "temporary" or "anonymous" email providers

▲ BiteCode_dev 5 hours ago | parent | prev [-]

Yes, espacially exotic tld. I have a ".email" domain name, and I get 2 to 3 instances a year of either rejected forms, or sneakier, just confirmation email that never come until I use a .com address.

▲ threeio 4 hours ago | parent [-]

I have a 3 character .com as my primary email... it gets rejected more often than I'd like... including at my bank :) I've got a longer more normal domain that I alias, but it annoys me none the less.

	▲	gerdesj 3 hours ago \| parent [-]
		Have you got this lot sorted out: `MX->A->PTR->A->MX SPF DKIM DMARC mta-sts - DNS and webpage` Also your IPs must be squeaky bum clean, ideally for several years. DNSSEC might help too. In the UK getting as far as DKIM is usually enough (plus clean IPs, even FTTC connections will work if static).