Can you examine whether the opalstack server checks a VPS username keyed for FileZilla client as it should do it ?
For example if the VPS username xxxx is the right username, the opalstack server accepts it which is ok i.e
the name xxxx is ok and the length 4 is ok.
Problem:
The opalstack server seems to accept also user names which just contain the string xxxx,
for example
xxxx/
xxxx//
xxxx///
Questions:
(1) which software/system causes this error ?
(2) does Thunderbird send xxxx even if
xxxx/ is keyed in ?
(3)
Does fpm-php software pass only xxxx
even if xxxx/ is sent from thunderbird client ?
(4) Is / a special character in vps username ?
(5) does the opalstack server check that VPS username defined in its the configuration:
(a) has the same length
(b) has exactly the same string
as that given by a vps user with Filezilla ?