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IMAP check capability

By nmap 

nmap -p143,993 --script imap-capabilities <IP>

Output example: 

PORT    STATE SERVICE
143/tcp open  imap
|_imap-capabilities: IDLE IMAP4 UNSELECT completed SASL-IR UIDPLUS LOGINDISABLED NAMESPACE OK LITERAL+A0001 CAPABILITY CHILDREN ID MOVE STARTTLS IMAP4rev1
993/tcp open  imaps
|_imap-capabilities: UNSELECT SASL-IR LITERAL+A0001 AUTH=NTLM IMAP4rev1 AUTH=GSSAPI IMAP4 OK UIDPLUS completed AUTH=PLAIN CAPABILITY ID NAMESPACE MOVE CHILDREN IDLE