Question: what are gmail pop and smtp settings?
Answer: SMTP Host: smtp.gmail.com. SMTP Port: 587. SSL Protocol: OFF. TLS Protocol: ON. SMTP Username: (your Gmail username) ... 
POP3 Host: pop.gmail.com. POP3 Port: 995. TLS Protocol: ON. POP3 Username: (your Gmail username) ... 
IMAP Host: imap.gmail.com. IMAP Port: 993. Encryption: SSL. IMAP Username: (your Gmail username)