rz01.org

> First, I tried mailbox.org, which I can generally recommend without reservation. Unfortunately, you can’t send emails from any address on your own domain without a workaround

I use mailbox for a long time, one account for 2.50EUR/month with multiple custom domains and I can send emails from any address. To send from a different address the process didn't really seem different than other providers.

From Thunderbird mobile on Android I just add a new sender identity. If I need to send from webmail, similarly I just add a new alternative sender. Are these the workarounds you mentioned?

My understanding is that the number of such sender aliases is limited, at most 50 or 250, depending on the plan. There are ways to use a custom domain for sending where you end up using a larger number of localparts fairly quickly, and it would be a hassle to have to manage them, instead of just typing whatever sender you want (or on replies, having the email client automatically use the address from the original email, without having to worry whether it’s still in the set of registered aliases).

I use mailbox for the past few years and I think it's the best option out there. But they have one major issue, which is that anyone can impersonate your domain:

https://userforum-en.mailbox.org/topic/anti-spoofing-for-cus...

Anti-spoofing for Custom Domains (SPF, DKIM & DMARC)

Does mailbox.org offer anti-spoofing options for custom domains? I can find no information about this on the help pages. Other privacy-oriented providers,

Oof, what a drag
Have been using mailbox.org with a custom domain (including catch-all wildcard) for the last 5 years or so, so it's definitely possible and as far I remember quite straightforward.
Yea been using mailbox.org for couple months and i can send from any address of my own domain...this is bad article. He probably doesn't know how to.
Can confirm, I use mailbox.org with my own domain and can send from any *@mydomain