Sounds to me like you have an alias or a forward rule defined somewhere. It is very improbable that this is a roundcube issue, it is the behaviour of your mail server.
hello,
sorry for my english but ...
there are a big error when i send a mail from webmaster@alloocash.com to webmaster@alloocash.com the mail go in yepla@alloocash.com
and when i send a mail from yepla@alloocash.com to webmaster@alloocash.com the mail go to yepla@alloocash.com ! :(
i don't understand i have 2 home different
yepla : /home/mail/yepla/ with Maildir
webmaster : /home/mail/webmaster with Maildir
i use postfix and courier-imap-ssl
i have 4 users which use roundcubewebmail and the bug is only on this 2 adress
plz help
thx
Yepla