# Send email every interval

**URL:** <https://discourse.nodered.org/t/send-email-every-interval/77426>\
**Category:** General\
**Created:** [10 April 2023 16:23 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426 "2023-04-10T16:23:21Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Manuel\_o](https://avatars.discourse-cdn.com/v4/letter/m/977dab/32.png) [@Manuel\_o](https://discourse.nodered.org/u/Manuel_o)\
**Post date:** [10 April 2023 16:23 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426/1 "2023-04-10T16:23:21Z")

</div>

Hello.

Today i am fighting with an email that should be send every "interval" time.I thought this will be a easy task, but here i am. I cant see my error. The error is, when i change the interval, i get multilple emails at different intervals. it seems that there are more intervals. I store the interval in a global. But for a better understanding, here is my current code:

```auto
[
    {
        "id": "7fd668330b39dee9",
        "type": "switch",
        "z": "746eb8d0d4ff58af",
        "name": "Check if email was sent (emailSent)",
        "property": "emailSent",
        "propertyType": "global",
        "rules": [
            {
                "t": "false"
            },
            {
                "t": "true"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 140,
        "y": 560,
        "wires": [
            [
                "6856e0132700fbc5"
            ],
            []
        ]
    },
    {
        "id": "6856e0132700fbc5",
        "type": "function",
        "z": "746eb8d0d4ff58af",
        "name": "prepare Email",
        "func": "var alarm = msg.payload[\"CIM500/ALARM_WARNING\"][0].AlarmCode\nvar warning = msg.payload[\"CIM500/ALARM_WARNING\"][0].WarningCode\n//-------------------\nvar alarm_present = msg.payload[\"CIM500/ADR_204\"][0].Fault\nvar warning_present = msg.payload[\"CIM500/ADR_204\"][0].Warning\n//-------------------\nlet email = flow.get(\"saveformEmail\")\nlet emailSent = global.get(\"emailSent\")\n\nif ((alarm_present == \"ON\" || warning_present == \"ON\") && email.EmailOnOff == true )\n{\n\n var msg1 = { to: email.Email1, payload:{alarm,warning}, topic: \"Alarm or warning triggered\" };\n return [msg1];\n} \n\nelse {\n return;\n}\n\n\n\n\n\n\n\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 380,
        "y": 560,
        "wires": [
            [
                "8ac50f5f7dcf8f64",
                "e3af556f6a5808ef"
            ]
        ]
    },
    {
        "id": "8ac50f5f7dcf8f64",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "name": "set emailSent to true (was send)",
        "rules": [
            {
                "t": "set",
                "p": "emailSent",
                "pt": "global",
                "to": "true",
                "tot": "bool"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 610,
        "y": 560,
        "wires": [
            [
                "d95b014856b0098c",
                "62e2a3ebfa21cc84"
            ]
        ]
    },
    {
        "id": "e3af556f6a5808ef",
        "type": "debug",
        "z": "746eb8d0d4ff58af",
        "name": "debug 276",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 650,
        "y": 500,
        "wires": []
    },
    {
        "id": "62e2a3ebfa21cc84",
        "type": "e-mail",
        "z": "746eb8d0d4ff58af",
        "server": "smtp.office365.com",
        "port": "587",
        "secure": false,
        "tls": false,
        "name": "",
        "dname": "send email",
        "credentials": {
            "userid": "",
            "password": ""
        },
        "x": 770,
        "y": 440,
        "wires": []
    },
    {
        "id": "d95b014856b0098c",
        "type": "function",
        "z": "746eb8d0d4ff58af",
        "name": "set timer for interval",
        "func": "let email = flow.get(\"saveformEmail\")\n\nmsg.payload = email.Interval * 60000\nreturn msg;\n\n\n\n\n\n\n\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 440,
        "y": 680,
        "wires": [
            [
                "ec7e80f7b94cfe14"
            ]
        ]
    },
    {
        "id": "ec7e80f7b94cfe14",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "delay",
                "pt": "global",
                "to": "payload",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 700,
        "y": 640,
        "wires": [
            [
                "64583836920d9e86"
            ]
        ]
    },
    {
        "id": "64583836920d9e86",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "delay",
                "pt": "msg",
                "to": "delay",
                "tot": "global"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 720,
        "y": 680,
        "wires": [
            [
                "d0279fe2017eba01"
            ]
        ]
    },
    {
        "id": "d0279fe2017eba01",
        "type": "delay",
        "z": "746eb8d0d4ff58af",
        "name": "delay intervall for reset",
        "pauseType": "delayv",
        "timeout": "1",
        "timeoutUnits": "seconds",
        "rate": "1",
        "nbRateUnits": "1",
        "rateUnits": "second",
        "randomFirst": "1",
        "randomLast": "5",
        "randomUnits": "seconds",
        "drop": false,
        "allowrate": false,
        "outputs": 1,
        "x": 550,
        "y": 760,
        "wires": [
            [
                "6a2c3f26726e6a72",
                "d740752d31d6ebdd"
            ]
        ]
    },
    {
        "id": "d740752d31d6ebdd",
        "type": "debug",
        "z": "746eb8d0d4ff58af",
        "name": "debug 275",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 830,
        "y": 760,
        "wires": []
    },
    {
        "id": "6a2c3f26726e6a72",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "emailSent",
                "pt": "global",
                "to": "false",
                "tot": "bool"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 660,
        "y": 860,
        "wires": [
            []
        ]
    },
    {
        "id": "1197ad5e0f88aca4",
        "type": "group",
        "z": "746eb8d0d4ff58af",
        "name": "EMAIL CONTACT FORM",
        "style": {
            "label": true
        },
        "nodes": [
            "4938c21e100e2f6d",
            "56509d4818c32a40",
            "5718d1032588488b",
            "394149370030dd08",
            "9c18edc8d4bda1d3",
            "f6689311da10032c",
            "5051c0ea40a38dc8"
        ],
        "x": 14,
        "y": 979,
        "w": 972,
        "h": 142
    },
    {
        "id": "4938c21e100e2f6d",
        "type": "ui_form",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "Monitoring Email",
        "label": "",
        "group": "b81c1409f706d23d",
        "order": 3,
        "width": 6,
        "height": 1,
        "options": [
            {
                "label": "Contact-Email I",
                "value": "Email1",
                "type": "email",
                "required": true,
                "rows": null
            },
            {
                "label": "Contact-Email II",
                "value": "Email2",
                "type": "email",
                "required": false,
                "rows": null
            },
            {
                "label": "Contact-Email III",
                "value": "Email3",
                "type": "email",
                "required": false,
                "rows": null
            },
            {
                "label": "Contact-Email IV",
                "value": "Email4",
                "type": "email",
                "required": false,
                "rows": null
            },
            {
                "label": "Interval [min]",
                "value": "Interval",
                "type": "number",
                "required": true,
                "rows": null
            },
            {
                "label": "OFF/ON",
                "value": "EmailOnOff",
                "type": "switch",
                "required": true,
                "rows": null
            }
        ],
        "formValue": {
            "Email1": "",
            "Email2": "",
            "Email3": "",
            "Email4": "",
            "Interval": "",
            "EmailOnOff": false
        },
        "payload": "",
        "submit": "submit",
        "cancel": "cancel",
        "topic": "topic",
        "topicType": "msg",
        "splitLayout": false,
        "className": "",
        "x": 590,
        "y": 1020,
        "wires": [
            [
                "56509d4818c32a40",
                "5718d1032588488b",
                "5051c0ea40a38dc8"
            ]
        ]
    },
    {
        "id": "56509d4818c32a40",
        "type": "debug",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "debug 277",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 810,
        "y": 1020,
        "wires": []
    },
    {
        "id": "5718d1032588488b",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "save saveformEmail",
        "rules": [
            {
                "t": "set",
                "p": "saveformEmail",
                "pt": "flow",
                "to": "payload",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 580,
        "y": 1080,
        "wires": [
            [
                "4938c21e100e2f6d",
                "d95b014856b0098c"
            ]
        ]
    },
    {
        "id": "394149370030dd08",
        "type": "ui_ui_control",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "",
        "events": "all",
        "x": 100,
        "y": 1020,
        "wires": [
            [
                "9c18edc8d4bda1d3"
            ]
        ]
    },
    {
        "id": "9c18edc8d4bda1d3",
        "type": "switch",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "",
        "property": "name",
        "propertyType": "msg",
        "rules": [
            {
                "t": "eq",
                "v": "PUMP A",
                "vt": "str"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 1,
        "x": 230,
        "y": 1020,
        "wires": [
            [
                "f6689311da10032c"
            ]
        ]
    },
    {
        "id": "f6689311da10032c",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "payload",
                "pt": "msg",
                "to": "saveformEmail",
                "tot": "flow"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 380,
        "y": 1020,
        "wires": [
            [
                "4938c21e100e2f6d"
            ]
        ]
    },
    {
        "id": "5051c0ea40a38dc8",
        "type": "change",
        "z": "746eb8d0d4ff58af",
        "g": "1197ad5e0f88aca4",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "emailSent",
                "pt": "global",
                "to": "false",
                "tot": "bool"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 860,
        "y": 1080,
        "wires": [
            []
        ]
    },
    {
        "id": "b81c1409f706d23d",
        "type": "ui_group",
        "name": "E_CONTACT",
        "tab": "4ad3c40739cbf998",
        "order": 3,
        "disp": true,
        "width": "6",
        "collapse": false,
        "className": ""
    },
    {
        "id": "4ad3c40739cbf998",
        "type": "ui_tab",
        "name": "PUMP A",
        "icon": "dashboard",
        "order": 3,
        "disabled": false,
        "hidden": false
    }
]

```

---

<div class="post-metadata">

**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [10 April 2023 16:41 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426/2 "2023-04-10T16:41:00Z")

</div>

That all seems rather complicated with flow and context storage.  
On the face of it I'd say something like this should suffice.

 ![Untitled 5](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/2/6231da11a58e85e056653cc23a37810f0266e35d.jpeg)

But who's getting the email?  
I'd be pretty annoyed if my computer sent me an email "The sky is falling" every few minutes.  
If it's another computer process, is MQTT a viable alternative to email?

---

<div class="post-metadata">

**Author:** ![Manuel\_o](https://avatars.discourse-cdn.com/v4/letter/m/977dab/32.png) [@Manuel\_o](https://discourse.nodered.org/u/Manuel_o)\
**Post date:** [10 April 2023 17:16 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426/3 "2023-04-10T17:16:04Z")

</div>

thank you for the answer.

the email is for me, if my pump has an error. i thought an interval where i can decide of often an email will be send, when an error occurs would be a nice idea

i send the data of my pump to an MQTT server

---

<div class="post-metadata">

**Author:** ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Post date:** [10 April 2023 18:21 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426/4 "2023-04-10T18:21:21Z")

</div>

Apologies, not an answer to your actual question.

However, a lot of us use Telegram bots for this rather than email.

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [10 April 2023 20:31 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426/5 "2023-04-10T20:31:45Z")

</div>

Have a look at the trigger node. That has a mode where it can repeat a message at a rate that can be passed in the message, and can then be reset when you want it to stop.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [9 June 2023 20:32 UTC](https://discourse.nodered.org/t/send-email-every-interval/77426/6 "2023-06-09T20:32:15Z")

</div>

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