rokiden/smtp-cli

Simple smtp mail sender

SMTP-CLI

Simple smtp mail sender as single static binary.

Used as notification callback. Configured through args and/or envs.

Usage of ./smtpcli:
  -b string
        body
  -d    debug
  -f string
        from (default "from@smtpcli")
  -h value
        header, multiple
  -s string
        server (default "localhost:25")
  -t string
        to (default "to@smtpcli")
  -u string
        subject

Flag	Env	Default	Description
-s	SMTPCLI_SERVER	localhost:25	SMTP server
-f	SMTPCLI_FROM	from@smtpcli	Sender
-t	SMTPCLI_TO	to@smtpcli	Recipient
-u	SMTPCLI_SUBJECT		Subject
-b	SMTPCLI_BODY		Body
-h	SMTPCLI_HEADERS_SEP + SMTPCLI_HEADERS		Headers

Flags overrides envs.

To set multiple headers:

• multiple -h flags can be set
• SMTPCLI_HEADERS can be set to separated list and SMTPCLI_HEADERS_SEP to separator

Examples

Healthchecks in podman

Environment:

SMTPCLI_SERVER=host.containers.internal:25
SMTPCLI_FROM=healthchecks@services
SMTPCLI_TO=user@local
SMTPCLI_HEADERS='Content-Type: text/plain; charset=utf-8|Content-Transfer-Encoding: quoted-printable|From: Healthchecks <healthchecks@services>'
SMTPCLI_HEADERS_SEP='|'

Mount: ../smtpcli/smtpcli:/smtpcli:ro

Integration:

Execute on "down" events: /smtpcli -b "=F0=9F=94=B4 $NAME $STATUS $NOW"

Execute on "up" events: /smtpcli -b "=E2=9C=85 $NAME $STATUS $NOW"

Test:

From: Healthchecks <healthchecks@services>
To: user@local

🔴 TEST down 2023-09-27T14:59:59+00:00

DIUN in podman

Environment:

DIUN_NOTIF_SCRIPT_CMD=sh
DIUN_NOTIF_SCRIPT_ARGS='-c,/smtpcli -b \"=F0=9F=94=B5 Image \$DIUN_ENTRY_IMAGE \$DIUN_ENTRY_STATUS at \$DIUN_ENTRY_CREATED\"'
SMTPCLI_SERVER=host.containers.internal:25
SMTPCLI_FROM=diun@services
SMTPCLI_TO=user@local
SMTPCLI_HEADERS='Content-Type: text/plain; charset=utf-8|Content-Transfer-Encoding: quoted-printable|From: Diun <diun@services>'
SMTPCLI_HEADERS_SEP='|'

Mount: ../smtpcli/smtpcli:/smtpcli:ro

Test:

From: Diun <diun@services>
To: user@local

🔵 Image docker.io/diun/testnotif:latest new at 2020-03-26 12:23:56 +0000 UTC