465 is the default port number for SMTP. SMTP stands for Simple Mail Transfer Protocol. It is used for sending Emails over the network.
By default it listens on SMTP port 25
Port 25 is reserved for SMTP traffic. Hence, it is listening for email.
SMTP uses port number 465 by default. It stands for Simple Mail Transfer Protocol. It is the protocol for sending emails in a network.
The default Port number for Active Direcotory server is 389
port 25
# Incoming Mail (POP3) Server: pop.mail.yahoo.com (Port 110) # Outgoing (SMTP) Server: smtp.mail.yahoo.com (Port 25)
Outlook Settings for SbcGlobal Account. SMTP: smtp att.yahoo.com, Security SSL, Port 465. Make sure that you also have on the Outgoing server tab, that "My outgoing (SMTP) server requires authentication." is checked, and that "Use the same settings as my incoming mail server is tic'd.
For Send Mail Transfer protocol default port number as is 25. SMTP actually stands for Simple Mail Transfer Protocol. I agree with the port number
443
An SMTP port is the port used to transfer email using the SMTP protocol. Typically SMTP is configured to use TCP port 25, although some servers will use TCP port 587.
SMTP stands for Simple Mail Transfer Protocol and it allows for moving email messages from one server to another. It is used by port 25. The only way to block it is for a Network Administrator to turn that port off.