SMTP

SMTP stands for Simple Mail Transfer Protocol, which is the standard protocol used on the Internet for sending emails. It is a part of the Internet protocol suite defined in RFC 821 (later updated by RFC 5321), and it operates over the Internet's architectural foundation, the TCP/IP suite.

Key Features of SMTP:

• Purpose: Designed to send and route email between mail servers, forming the backbone of email transmission.
• Port Numbers: Commonly uses ports 25, 465 (SSL), and 587 (TLS) for different levels of secure communication.
• Process: Operates via a client-server model where the sender’s server pushes the email to the recipient’s server.
• SMTP Authentication: Requires username and password to prevent unauthorized use and reduce spam.
• Email Relaying: Transfers email across different mail servers, often with restrictions to prevent abuse.
• SMTP Commands: Uses simple text-based commands like HELO, MAIL FROM, RCPT TO, DATA, and QUIT to handle communication.
• Limitations: SMTP only handles outgoing mail; it doesn’t support email retrieval or attachments natively.
• Integration with Other Protocols: Works alongside IMAP or POP3 to complete the full email delivery and retrieval process.
• MTA to MDA Delivery: Facilitates delivery from Mail Transfer Agents (MTAs) to Mail Delivery Agents (MDAs) for final inbox placement.

Further information

Read more detailed information on SMTP here.

Action:

Send an email: Sends an email.

Connect with SMTP:

1. Go to Workflow Automation and navigate to Apps. Click the + Add Connection button. In the popup, select SMTP from the list.
2. Fill in the host address field with the SMTP host address.
3. Fill in the username field with the SMTP username.
4. Fill in the password field with the SMTP password.
5. Select whether to use TLS or not.
6. Fill in the port field with the SMTP port.
7. Fill in the sender field with the email address you would like to use as the sender email address.
8. Click the Submit button.
9. Your SMTP connection is now established.
10. Start using your new SMTP connection with Workflow Automation.