Please use a personal email. My email is ‘mail’ @ ‘my actual name’. It does not get more personal than that
But you can’t use emails starting with mail@, admin@, support@, info@, main@, etc.
Instead they advised me (3 times) to create a personal email on a service like Yahoo, Outlook, Gmail, Orange, etc
Eh, honestly I think blocking plus addressing as a workaround to block people from using multiple identities on the site is very weak argument and ignores completely the reason plus addeesses are being used in the first place, tagging.
And the addition of “-” just tells they don’t really know what they’re doing, considering it’s not only valid but also very common symbol in email addresses
I don’t think the reason they’re being used is relevant to their problem though. “Think like an attacker” wins the day here: as an attacker, I don’t care what it’s meant for, only how I can use it to my advantage. If it’s something they observed as a problem, I understand why they would want to stop it.
As for “-”, yeah, I don’t have a particularly good explanation for that one except the assumption that it’s something similar to + addressing on a different service.
“-” is the default delimiter in qmail. I administer a system, where both + and - are valid recipient delimiters for historic reasons and we can’t really get rid of it.
Believe me, it has caused all kinds of problems, where we have to go deep into the finer differences between aliases and virtual aliases and transport maps in postfix to route mails correctly. Especially since we have a lot of Mailinglists with - as a valid character in them.
So to summarize: the assumption by changeorg is valid, however the execution seems rather flawed.