When the mail server sends mail to other mail servers it becomes _____...
SMTP clients are the entities that send mails to other mail servers. The SMTP servers cannot send independent mails to other SMTP servers as an SMTP server. There are no masters or peers in SMTP as it is based on the client-server architecture.
When the mail server sends mail to other mail servers it becomes _____...
SMTP Client vs SMTP Server
SMTP, or Simple Mail Transfer Protocol, is the standard protocol used for sending and receiving email messages over the internet. When the mail server sends mail to other mail servers, it becomes an SMTP client.
SMTP Client
An SMTP client is a software application that initiates an SMTP session with a mail server. It is responsible for sending outgoing emails to the destination email server. The SMTP client sends the email message to the SMTP server of the recipient, following a set of protocols.
SMTP Server
An SMTP server is a software application that receives, processes, and delivers incoming emails. It accepts the incoming email messages and forwards them to the appropriate recipient's mailbox. The SMTP server listens for incoming email requests and replies with the appropriate response codes.
Conclusion
In summary, when a mail server sends mail to other mail servers, it becomes an SMTP client. The SMTP client initiates an SMTP session with the recipient's SMTP server to send the email. The recipient's SMTP server, in turn, acts as an SMTP server by receiving, processing, and delivering the incoming email.