# Email a Calendar Invitation

Source: https://openflow.run/ja/templates/email-a-calendar-invitation/
Content language: en
Template revision: 9018120e802d4de0a097610157c565df858c0871

仕事効率化

Generate an iCalendar event file and email it as an attachment.

[Open Flow で使用](https://console.openflow.run/flows?importUrl=https%3A%2F%2Fraw.githubusercontent.com%2Foomol-lab%2Fawesome-workflow-templates%2F9018120e802d4de0a097610157c565df858c0871%2Fworkflows%2Femail-a-calendar-invitation%2Ftemplates%2Femail-a-calendar-invitation.openflow.json)

*   [Open Flow JSON](https://raw.githubusercontent.com/oomol-lab/awesome-workflow-templates/9018120e802d4de0a097610157c565df858c0871/workflows/email-a-calendar-invitation/templates/email-a-calendar-invitation.openflow.json)
*   [n8n JSON](https://raw.githubusercontent.com/oomol-lab/awesome-workflow-templates/9018120e802d4de0a097610157c565df858c0871/workflows/email-a-calendar-invitation/templates/email-a-calendar-invitation.n8n.json)

![Open Flow の Email a Calendar Invitation ワークフロー](https://openflow.run/_astro/preview-light.Cqge0xtF_CIjOr.webp)

Generate an iCalendar event file and email it as an attachment.

## Setup

In Open Flow, connect SendGrid, set the verified sender and recipient in **Email the invitation**, and set the event title, start and end in **Create calendar event file**. Use UTC timestamps such as `2030-06-11T15:30:00Z`; the end must be later than the start. Edit the email body if needed.

In n8n, run the instance with its process timezone set to UTC, configure the **iCalendar** title, start and end as UTC timestamps, connect an SMTP account in **Send Email**, and set its sender, recipient and message. Each format uses its own email connection. Run the workflow manually.

## Behavior

Each run generates an iCalendar event file and emails it to the configured recipient. Open Flow creates a new event UID for each run. A failed or uncertain send may already have been delivered; check the mailbox before retrying. The attachment publishes an event; it does not manage attendee RSVPs. The recipient’s mail or calendar app decides how to import it.

Inspiration & credits

## Changes to the source

*   Replace the 2021 example event and personal message with configurable event details. Open Flow sends with SendGrid; n8n retains SMTP.

Adapted from [Send an iCalendar event by email](https://github.com/Zie619/n8n-workflows/blob/ae8cf6dc5b873cbb4f74587aa9180ed3a9f70682/workflows/Manual/0038_Manual_Ical_Send_Triggered.json) in [Zie619/n8n-workflows](https://github.com/Zie619/n8n-workflows). The source export does not identify a separate template author or license.

The collection’s [MIT notice](https://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/LICENSE) is pinned at a later revision. This is the collection notice at that revision; it does not establish a separate original template author’s license. Our changes are listed above; see [repository licensing](https://github.com/oomol-lab/awesome-workflow-templates/blob/9018120e802d4de0a097610157c565df858c0871/README.md#licensing).

> MIT License
> 
> Copyright (c) 2025 Zie619
> 
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
> 
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
> 
> THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

## 使用するアプリ

*   [**SendGrid**`sendgrid`](https://console.openflow.run/connections/sendgrid)

## 必要な設定

*   SendGrid connection in Open Flow or SMTP credentials in n8n
*   Recipient and event title, start and end time

*   calendar
*   gmail
*   email
*   events

[GitHub で見る](https://github.com/oomol-lab/awesome-workflow-templates/blob/9018120e802d4de0a097610157c565df858c0871/workflows/email-a-calendar-invitation/README.md)