Calendar: When event creator email contains a +, e-mail are not being sent

Created on 4 Apr 2020 · 26Comments · Source: nextcloud/calendar

Steps to reproduce

Create an event on a calendar ( for my case not shared, it's "mine")
Add an email adress to the persons list
Click on save or update

Expected behaviour

Tell us what should happen
I expected the other person to receive the mail

Actual behaviour

Tell us what happens instead
Even after checking the spam list or waiting an hour, nothing is being received

The test e-mail has been successfully received and when i create an e-mail for a file sharing (sharebymail: 1.8.0) , i received it in a very short time. The e-mail sending itself is working excepting for calendar.

Calendar app

Calendar app version: (see apps admin page, e.g. 2.0.1)
2.0.2
CalDAV-clients used: (Thunderbird Lightning, DAVx5, Evolution, macOS Calendar, etc)
Thunderbird Lightning, DAVx5, Calendar app

Client configuration

Browser: (e.g. Firefox 48)
Firefox 74.0.1
Operating system: (e.g. Arch Linux)
Windows 10 pro

Server configuration

Operating system: (e.g. Debian 8)
Ubuntu 18.04
Web server: (e.g. Apache, Nginx,...)
Nginx
Database: (e.g. MariaDB, SQLite or PostgreSQL)
MariaDB
PHP version: (e.g. 7.0.3)
7.4.4
Nextcloud Version: (see admin page, e.g. 17.0.2)
18.0.3
Updated from an older installed version or fresh install:
18.0.1
List of activated apps:

Enabled:
  - accessibility: 1.4.0
  - activity: 2.11.0
  - admin_audit: 1.8.0
  - apporder: 0.9.0
  - browser_warning: 0.2.0
  - bruteforcesettings: 1.6.0
  - calendar: 2.0.2
  - checksum: 0.4.4
  - cloud_federation_api: 1.1.0
  - comments: 1.8.0
  - contacts: 3.2.0
  - dav: 1.14.0
  - deck: 0.8.0
  - event_update_notification: 1.0.1
  - extract: 1.2.3
  - federatedfilesharing: 1.8.0
  - federation: 1.8.0
  - files: 1.13.1
  - files_accesscontrol: 1.8.1
  - files_automatedtagging: 1.8.2
  - files_downloadactivity: 1.7.0
  - files_external: 1.9.0
  - files_pdfviewer: 1.7.0
  - files_rightclick: 0.15.2
  - files_sharing: 1.10.1
  - files_trackdownloads: 1.7.0
  - files_trashbin: 1.8.0
  - files_versions: 1.11.0
  - files_videoplayer: 1.7.0
  - firstrunwizard: 2.7.0
  - guests: 1.4.3
  - issuetemplate: 0.6.0
  - logreader: 2.3.0
  - lookup_server_connector: 1.6.0
  - metadata: 0.11.1
  - music: 0.13.2
  - nextcloud_announcements: 1.7.0
  - notes: 3.2.0
  - notifications: 2.6.0
  - oauth2: 1.6.0
  - ocr: 6.0.28
  - ocsms: 2.1.7
  - onlyoffice: 4.1.4
  - password_policy: 1.8.0
  - phonetrack: 0.6.2
  - photos: 1.0.0
  - polls: 1.3.0
  - privacy: 1.2.0
  - provisioning_api: 1.8.0
  - quota_warning: 1.7.0
  - serverinfo: 1.8.0
  - settings: 1.0.0
  - sharebymail: 1.8.0
  - sharelisting: 0.3.0
  - sharingpath: 0.2.0
  - socialsharing_email: 2.0.0
  - socialsharing_twitter: 2.0.0
  - spreed: 8.0.7
  - support: 1.1.0
  - survey_client: 1.6.0
  - suspicious_login: 3.1.0
  - systemtags: 1.8.0
  - talk_simple_poll: 1.1.0
  - tasks: 0.12.1
  - telephoneprovider: 1.0.3
  - theming: 1.9.0
  - twofactor_admin: 2.1.0
  - twofactor_backupcodes: 1.7.0
  - twofactor_email: 1.0.1
  - twofactor_gateway: 0.15.1
  - twofactor_nextcloud_notification: 2.3.0
  - twofactor_totp: 4.1.3
  - twofactor_u2f: 5.1.0
  - updatenotification: 1.8.0
  - video_converter: 0.1.3
  - viewer: 1.2.0
  - workflow_pdf_converter: 1.3.1
  - workflowengine: 2.0.0
Disabled:
  - analytics
  - announcementcenter
  - breezedark
  - camerarawpreviews
  - cms_pico
  - data_request
  - drawio
  - encryption
  - external
  - files_antivirus
  - files_fulltextsearch
  - files_linkeditor
  - flowupload
  - forms
  - fulltextsearch
  - fulltextsearch_elasticsearch
  - jsloader
  - keeweb
  - mail
  - maps
  - occweb
  - ocdownloader
  - ransomware_protection
  - recommendations
  - registration
  - scanner
  - shorten
  - text
  - theming_customcss
  - uploaddetails
  - user_ldap
  - workflow_scripter

Nextcloud configuration:

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "auth.bruteforce.protection.enabled": true,
        "trusted_domains": [
            "****",
            "****"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "filelocking.enabled": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "timeout": 0,
            "password": "***REMOVED SENSITIVE VALUE***"
        },
        "0": {
            "verify_peer_off": false
        },
        "version": "18.0.3.0",
        "overwrite.cli.url": "https:\/\/****",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "onlyoffice": "",
        "installed": true,
        "enable_previews": true,
        "preview_libreoffice_path": "\/usr\/bin\/libreoffice",
        "enabledPreviewProviders": [
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\GIF",
            "OC\\Preview\\BMP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\Movie",
            "OC\\Preview\\PDF",
            "OC\\Preview\\MP3",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown"
        ],
        "app_install_overwrite": [
            "limit_login_to_ip",
            "onlyoffice",
            "shorten",
            "keeweb",
            "forms",
            "ocsms",
            "twofactor_email",
            "checksum",
            "contacts",
            "sharerenamer",
            "socialsharing_email",
            "uploaddetails",
            "socialsharing_twitter",
            "sharingpath",
            "jsloader"
        ],
        "maintenance": false,
        "twofactor_enforced": "true",
        "has_internet_connection": "true",
        "twofactor_enforced_groups": [],
        "twofactor_enforced_excluded_groups": [],
        "updater.release.channel": "stable",
        "theme": "",
        "loglevel": 2,
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "ssl",
        "mail_sendmailmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mysql.utf8mb4": true
    }
}

Logs

Web server error log (e.g. /var/log/apache)

Nothing which concerns this issue

Log file (data/nextcloud.log)

Nothing which concerns this issue

1 - to develop bug

Source

NewRedsquare

All 26 comments

Inside the Groupware settings (/settings/admin/groupware), is the "Send invitations to attendees" setting activated ?

tcitworld on 4 Apr 2020

Everything is activated ( the 4 boxes )

NewRedsquare on 4 Apr 2020

mmmh that's very strange, i had to enable/disable those options like 3 times to get emails working ( for some emails not all ), i'll check this the next days, don't close this please, this could be still an issue

NewRedsquare on 4 Apr 2020

First update : it seems like i had to remove the events prior enabling/disabling 3 times, then recreating events to get emails working.

NewRedsquare on 5 Apr 2020

Were those events in the past or the future?
We don’t send out invitations for events in the past

georgehrke on 5 Apr 2020

Those events are in the future ( the 9th april)

NewRedsquare on 5 Apr 2020

Can you please double check the Sent folder of the email account you configured to send emails for your Nextcloud, to check that there are really no invitation emails in there.

georgehrke on 5 Apr 2020

Sadly, I can't tell you as the mail sent via SMTP are not shown in the sent folder ( my mail UI is Zimbra )

NewRedsquare on 5 Apr 2020

Can you please double check the Sent folder of the email account you configured to send emails for your Nextcloud, to check that there are really no invitation emails in there.

I don't think SMTP saves a copy of sent emails in the Sent folder anyway, that's only some clients doing it through IMAP. SMTP logs would be quite handy though.

tcitworld on 5 Apr 2020

Can you please double check the Sent folder of the email account you configured to send emails for your Nextcloud, to check that there are really no invitation emails in there.

I don't think SMTP saves a copy of sent emails in the Sent folder anyway, that's only some clients doing it through IMAP. SMTP logs would be quite handy though.

If i don't self-host the mail server, how can i achieve it ?

NewRedsquare on 5 Apr 2020

(B)CC + filter at inbound to move the mail

dirigit on 16 Apr 2020

HI all. Have same problem. No E-mail form Calendar only. I try add rmind for myself. So i must recive remind from my personal calendar. Same use ZIMBRA.
I'm use NC 18.0.4 and Calendar 2.0.3 on Ubuntu Server 20.04.
E-mail from any other apps work stable. Have any idea?

ASTIN-UA on 8 May 2020

~~go to apps/mail/vendor/christophwurst/kitinerary-bin/bin/ and make sure the kitinerary-extractor file is executable. that fixed it for me.~~ - sorry got confused between problems.

What fixed this for me was toggeling the feature on and off a few times under Settings->Groupware->Send invitations to Attendees....and then recreating the calendar events.

einalex on 8 May 2020

@einalex Are you absolutely sure about that? I don't see how the itinerary Feature of the mail app would interfere with the mailing system of Nextcloud. The mailing system of Nextcloud has nothing to do with the mail app.

georgehrke on 8 May 2020

oh no you're right. I was fixing two issues at the same time and got the solutions confused. I'll adjust my initial comment.

einalex on 8 May 2020

I also have a problem sending the invitation email. If I create an appointment and add a participant and then click on save / update, it loads in a continuous loop and the appointment is not saved. The email server is configured correctly and the test mail goes out. My Nextcloud version is 19.0.0 and the error was already in 18. In the 17 version, the email is sent. My PHP version is 7.4 the calendar APP is up to date. Unfortunately, the logs do not show anything when I perform this action.

Supergamerx3000 on 23 Jun 2020

I also have the same problem. I'm admin of the nextcloud server and of the email server used. I've tried to set\unset options in /settings/admin/groupware without any success. When creating attendees I just see no action in servers logs (both nextcloud and mail server). So seems that nextcloud doesn't try to send the mail at all.

iprok on 21 Jul 2020

I've the same issue, I don't receive mail remainder too...
Before the last update it worked fine

ClemPera on 2 Aug 2020

Before the last update it worked fine

You mean NC update? What was that last working NC version?

dumblob on 8 Sep 2020

Before the last update it worked fine

You mean NC update? What was that last working NC version?

Sorry, I don't remember the update, I just know that at the beginning of the year it worked...

ClemPera on 8 Sep 2020

Since the last update the error in 19.0.2 & 18.0.8 has been fixed. E-mails are sent when I create an appointment.

Supergamerx3000 on 8 Sep 2020

Since the last update the error in 19.0.2 & 18.0.8 has been fixed. E-mails are sent when I create an appointment.

I just update the last nextcloud & calendar update.

So I tried to :

Create a new event with a reminder by email at the beginning of the event : I don't receive any email at the beginning

Add a new participant to that event (I enter an email not a registered user on my nextcloud) : The participent did receive the email to accept/refuse the participation to the event BUT he also didn't receive the email when the event starts.

So I think it's not fixed.

ClemPera on 8 Sep 2020

same here on NC 18.0.12
emails are not sent when inviting someone but strangely if I invite someone when I create an event on the native Agenda app from my mac, guest receives nextcloud invitation(!)

ImaCrea on 23 Feb 2021

Hi there,

On our side another user told me it's all working fine.

So I tried to reproduce the steps again and I noticed the issue is happening when the email registered for my connected account (which creates the event in the agenda) includes a "+".

When I retried with another account which use a regular email address, the invitation was sent properly.

Just to make sure it's clear, I'm talking here about the email address of the connected account which create the event and invite someone. (In case you're curious, I also tried if guest's email includes a "+" and it works well in that situation)

ImaCrea on 10 Mar 2021

🎉1

hi @ImaCrea, thanks so much for these details. I had the exact same problem and couldn't get my calendar events to send email invitations to attendees.

My nextcloud user account has a “+” (plus sign) in its email address. And my invitations are not sent.

I tried with another user account on the same NC instance and the invitations were sent out correctly! 🎉

_Note: the invitation emails are sent to attendees with the language preference of the event creator - which I think should be the language of the user to whom the email is sent - but that's part of another issue I guess_