One mild word of caution on this method. I too have done this forever but recently I have been running into a few businesses that get really upset if their name is in your email address and they will flag it as fraud despite there being no logical reason to do so. It isn't like I am using a domain name matching their name. The most staunch and stubborn of these I ran into recently was The Tractor Supply Company. I've been trying for a month to get a gift card reimbursed that they cancelled the order on because I had their name in the email address. There are a couple gaming companies that do this as well. Just pick a name that is unique and put it in your password database.
Yes, although so far I have not run in to being flagged for fraud, some have been very confused by it. So I have started doing short variations of it to make it less obvious, so The Tracor Supply Company would be something like trasu@s.domain.tld
And instead of having a catchall on my domain.tld I have it on a subdomain, like s.domain.tld , easy way to keep them separate.
Your account may be old enough that the more aggressive anti-fraud measures have not kicked in. They made it clear to me that their system would flag my email by having their name it. I've explained to no less than 5 support members what a canary is and they still have not resolved my issues. I even changed my email, still no luck.
I haven't run into many companies that disallow their name in email addresses. AliExpress and Amazon come to mind.
I have, however, run into a number of large companies where I've been talking with employees who see my email for whatever reason, and have received the "Oh, do you work here too?" question.
