send-email

name	send-email
description	Use when the user wants to send an email, deliver a notification/report by email, or email a file's contents. Sends via SMTP using credentials from environment variables (SMTP_HOST/PORT/USER/TOKEN). Defaults to the 163 mailbox configured in this environment.

send-email

Send email via SMTP. Credentials come from environment variables, never hardcoded.

Credentials (environment variables)

Var	Meaning	Example
SMTP_HOST	SMTP server	smtp.163.com
SMTP_PORT	port — 465 = SSL, 587 = STARTTLS	465
SMTP_USER	login user / default From	[e-mail]
SMTP_TOKEN	authorization code / app password (NOT login password for 163/QQ)	—
SMTP_FROM	optional, overrides From	—

Usage

python3 ./scripts/send_email.py \
  --to [e-mail] \
  --subject "主题" \
  --body "正文文本"

Other body sources and options:

• --body-file /path/to/body.txt — read body from a file
• piped stdin: echo "正文" | ... send_email.py --to [e-mail] --subject "Hi"
• --html — treat body as HTML
• --to / --cc / --bcc — repeatable for multiple recipients
• --from — override the From address

Run python3 ./scripts/send_email.py --help for the full list.

Notes

• Port 465 → SSL (SMTP_SSL); any other port → plain SMTP + STARTTLS.
• Prints OK: sent from ... to ... via host:port on success; exits non-zero with an ERROR: line if a credential env var is missing.
• Never echo SMTP_TOKEN; only read it from the environment.