What is SMTP; with which settings does TR7 send e-mail notifications?

Short answer

SMTP (Simple Mail Transfer Protocol) is the standard protocol used for sending e-mail (RFC 5321). TR7 sends notification, report and backup e-mails without its own mail server, through the organization's SMTP server; this server is defined once in the E-mail Settings section in Notification Management and is used for all e-mail sending device-wide. The definition contains the server address (Host Device), the port, optional Authentication, connection security (Security: None, SSL, TLS or START TLS; default TLS), the sender name and address, CC/BCC and the subject; before the settings are saved, a test e-mail can be sent to an address with Test e-mail Settings (E-mail settings editing form). Without this setting, the e-mail channel of notifications, periodic report e-mails and the e-mail sending of File Forwarding do not work.

Where It Is Used in TR7

Where	Field / label	What for
Settings → General Settings → Notification Management → E-mail settings → Edit	Route Table, Host Device, Port, Authentication, Security	Global SMTP server and connection settings
Same form	Sender Name, Sender Address, CC, BCC, Subject	Sender information, the recipients to be added to every e-mail, and the subject
Same form	Test e-mail Settings	Verifying the settings with a test e-mail
Notification Management → Notifications	Notification Action → Send e-mail	E-mail on device events
Load Balancer → Profiles → Notifications; WAF, Bot/DDoS and AGS notification screens	E-mail fields	Recipient addresses of module notifications; the sending goes through this SMTP
Load Balancer → Profiles → Reports; WAF Management → Periodic reporting	E-mail Report (in WAF)	Periodic report e-mails (Can I receive reports regularly by e-mail?)
AGS → Authentication → Multi-Factor Authentication (MFA)	Email OTP	Sending the one-time verification code to the user by e-mail
Settings → General Settings → File Forwarding	Transport Type = E-Mail	Sending backup files by e-mail

• Notification channels and recipients: What is Notification Management; how do the notification profile, Contact Groups and channels come together?
• Sending WAF reports by e-mail: Can I receive reports regularly by e-mail; at what times are they sent?

Common Misconceptions

• "TR7 delivers the e-mail to the recipient itself." TR7 is only an SMTP client; e-mails go through the SMTP server in the Host device field, and that server delivers them to the recipient.
• "Selecting e-mail in the notification profile is enough." If E-mail settings is not defined, the e-mail channel does not work; the SMTP setting is made first.
• "Each module has a separate SMTP setting." There is a single SMTP server device-wide; on the notification screens of the modules, only the recipient addresses are entered.

How it is done in the documentation

• Notification Management · E-mail Settings
• Notification Management · The E-mail Settings Editing Form
• Notification Management · Security

Related questions

• What is Notification Management; how do the notification profile, Contact Groups and channels come together?
• Can I receive reports regularly by e-mail?
• What is the difference between STARTTLS and implicit TLS (SMTPS, LDAPS)?