WebPort Number Protocol description; 20, 21: port number 20 is used for FTP data while port number 21 is used for FTP Control: ... SMTP (Simple Mail Transfer Protocol) 110: POP3: 143: IMAP i.e. Interim Mail Access Protocol: 137, 138, 139: port number 137 is used for BIOS Name service, 138 for NetBIOS-dgm, 139 for NetBIOS Datagram service: 22: Used ... WebJul 31, 2012 · Ports 587, 25 (SMTP), 110 (POP3) and 143 (IMAP) use SSL/TLS via a "START TLS" upgrade. You'll need to add -starttls prot where prot is smtp, imap or pop3, as appropriate. Note that if any of these services support Server Name Indication, you might not get all the certificates, if you don't request the correct host name in the first place.
TCP and UDP port numbers - complete list - How Does Internet Work
WebDec 30, 2024 · Because data can be sent with or without the use of SSL, one way to indicate a secure connection is by the port number. By default, HTTPS connections use TCP port 443. HTTP, the unsecure protocol, uses port 80. ... 143: IMAP – Incoming: 993: IMAP SSL – Incoming: 25, 80, 3535: SMTP – Outgoing: 465: Web143 – this is the default port which does not provide any encryption. Port 993 is the secure port for IMAP and it works over TLS/SSL encryption. What is the difference between … how many shots out of a 750ml
How to enable IMAP/POP3/SMTP for Google Accounts - SalesHandy
WebOct 21, 2024 · 143 – Internet Message Access Protocol (IMAP) 443 – HTTP Secure (HTTPS) Since there are so many thousands of common port numbers, the easiest approach is to … WebJun 21, 2024 · Port Number Function; 80: This default HTTP port is used for transferring web pages on an unsecured connection. 443: ... POP3 port used for SSL/TLS protocols. 143: Internet Message Access Protocol (IMAP4), mainly used for recovering emails. 993: This port connects using IMAP over SSL/TLS. (Encrypted incoming transmission) WebAug 22, 2024 · Port 143: It is a non-encrypted port. By default, it works on this port. Port 993: This port is more suitable as it is encrypted. It allows you to connect securely using IMAP. SMTP Simple Mail Transfer Protocol is a standard mail transfer protocol. It is mainly used to send emails between the servers. It works on four ports: how many shots per bottle of liquor