@CyrilBrulebois

Peculiarly, it looks like #deb822 is slightly different from #rfc822…deb822 prohibits duplicate headers, while rfc822 allows them (poking at the headers of the currently-selected-message in Mutt, I have a half-dozen Receive: headers on the same message which deb822 would seem to prohibit)

@jpmens

@0xcb: But luckily your website tries to scare me away as a new customer. 😡 Of course the e-mail address I wanted to use in your webshop is long and contains special characters! 🤬

How else should I easily use one e-mail address per account if not separating the company name with a special character from my user name to see where else my shop accounts are diffusing too. 🤌

I strongly recommend that you start using a sign-up form which respects e-mail standards, especially #RFC822 Section 6.