Enhancement Request for Meeting Invitation Replies Handling

[yuri]

Setting parent: https://github.com/espocrm/espocrm/c...0c35204a8a6211

[partomas]

In our case not all users has SMTP account. Another cases are when the coordinator create events for users.

[rabii]

The system checks first if the current user's SMPT is available it will use it to send the email. It only use system email in case in user's SMPT is not available.

https://github.com/espocrm/espocrm/blob/9339082f9b2df7952a526ef455f4e3d40b191e6a/application/Espo/Modules/Crm/Tools/Meeting/InvitationService.php#L67

[partomas]

**Description:**
Currently, when sending a meeting request from the calendar, the emails are sent from the system email set in "Outbound Emails" settings. The issue arises when invitees respond to the invitation via email; their replies go to the system email inbox, leaving invitees unaware of any responses. The replies are not linked to the parent entity, so followers do not get notified.

**Ideal Solution:**
1. Automatically attach replies to the parent entity, ensuring followers receive notifications.
2. If not feasible, include a "reply-to" field in the invitation, setting it to the assigned user's email. This way, the responsible person can receive and manage the responses directly.

**Benefits:**
- Ensures all relevant stakeholders are informed of meeting responses.
- Improves workflow efficiency and communication.