Something
public text v1 · immutableLast login: Sat Jul 7 00:04:22 on ttyp4
Welcome to Darwin!
MacBook:~ Jesse$ telnet mail.messagingengine.com 143
Trying 66.111.4.51...
Connected to mail.messagingengine.com.
Escape character is '^]'.
* OK IMAP4 ready
1 CAPABILITY
* CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE SASL-IR STARTTLS
1 OK completed