When should an email client or application use the Submission port instead of port 25?

Jan 8, 2025 ... Help message, Response to the HELP command. No action is needed; informational only. 220, Service ready, The SMTP server is ready to receive ... This document explains a portion of the setup information necessary to email ... Server - Enter the SMTP (Simple Mail Transfer Protocol) server through which your ... All incoming and outgoing messages that travel through the MTL mail servers are scanned for viruses and other dangerous attachments/content as well as being ... ... SMTP server on the local machine to handle mail delivery. However, it is ... server options — Specifies necessary information about the server being polled, such ... Enter the SMTP server IP address or hostname and port number for the protected domain in the appropriate fields. 4. If you want email routing to use Transport ... The sender's server sends the email to the recipient's server using the SMTP protocol. ... Since the message or attachments may contain sensitive information — ... During SMTP installation, users are prompted to install or upgrade the IIS Connection if needed. For more information about configuring mail Relay Connections, ... Jun 3, 2015 ... It assumes that you have correctly configured your SMTP mail server, which is a middle-tier administration task. Note: For information about ... Oct 10, 2013 ... Outgoing Server - smtp.mail.yahoo.com; Incoming Port - 993 (requires SSL); Outgoing Port - 465 (requires SSL/TLS); Username: full email address ... 5xx - Fatal error encountered, Mail server cannot process request. Second digit. The second digit gives more information and there are six possible values. x0x ...