debian:/home/scum# telnet smtp.erve.ru imap
Trying 192.168.0.13...
Connected to smtp.erve.ru.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2005 Double Precision, Inc.  See COPYING for distribution information.
A Login test@erve.ru test
A NO Login failed.
Connection closed by foreign host.