A friend in the Santa Clara Valley California Rare Fruit Growers has tried to register and gets this error message:
"Sorry, but this username has been disallowed."
He tells me that he has tried many usernames, but all with the same result.
Any suggestions what to tell him to do next? He can't find a way to ask the question himself.
Are there ISPs/email addresses that lead to automatic rejection?
Thanks,
baumgrenze