Send Email (SMTP)

SMTP (Mailtrap)
Set Smtp:ApiToken in appsettings or User Secrets to avoid typing it each time.
Message
Read tracking
Links in the body are routed through this app, so a click marks the email as opened even when images are blocked.
Outlook and Thunderbird prompt the recipient to send a receipt to the From address. Gmail ignores these headers.
Open detection always includes hidden tracking images (two pixels, a background image, and a remote stylesheet).
View sent messages