Support intro
Sorry to hear you’re facing problems. 
The community help forum (help.nextcloud.com) is for home and non-enterprise users. Support is provided by other community members on a best effort / “as available” basis. All of those responding are volunteering their time to help you.
If you’re using Nextcloud in a business/critical setting, paid and SLA-based support services can be accessed via portal.nextcloud.com where Nextcloud engineers can help ensure your business keeps running smoothly.
Getting help
In order to help you as efficiently (and quickly!) as possible, please fill in as much of the below requested information as you can.
Before clicking submit: Please check if your query is already addressed via the following resources:
- Official documentation (searchable and regularly updated)
- How to topics and FAQs
- Forum search
(Utilizing these existing resources is typically faster. It also helps reduce the load on our generous volunteers while elevating the signal to noise ratio of the forums otherwise arising from the same queries being posted repeatedly).
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
30.0.4 (docker)
- Operating system and version (e.g., Ubuntu 24.04):
Ubuntu 22
- Web server and version (e.g, Apache 2.4.25):
N/A
- Reverse proxy and version _(e.g. nginx 1.27.2)
Nginx
- PHP version (e.g, 8.3):
8.2.27
- Is this the first time you’ve seen this error? (Yes / No):
no
- When did this problem seem to first start?
N/A
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Official docker image (non-AIO) using docker compose
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
Yes, but only as a DNS (not proxied)
Summary of the issue you are facing:
I’ve been trying to set up mail sender on my instance, but I can’t seem to get the test mail to be sent properly. When I try to send a test mail from the “Basic Settings” page, I get the following error.
A problem occurred while sending the email. Please revise your settings. (Error: Email could not be sent. Check your mail server log)
Steps to replicate it (hint: details matter!):
- Set up identity and user on Amazon SES
- Configure the nextcloud’s smtp settings
- From the Basic Settings page in the Administration Settings, try to send the test email by clicking Send Mail button
Log entries
No error or warning messages appear on the log
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
No relevant messages
Web Browser
If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.
N/A
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
No relevant messages
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
{
"system": {
"htaccess.RewriteBase": "\/",
"memcache.local": "\\OC\\Memcache\\APCu",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"password": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"upgrade.disable-web": false,
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"localhost",
"[REDACTED]"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "30.0.4.1",
"overwrite.cli.url": "https:\/\/[REDACTED]",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"twofactor_enforced": "true",
"twofactor_enforced_groups": [],
"twofactor_enforced_excluded_groups": [],
"overwriteprotocol": "https",
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"default_phone_region": "KR",
"loglevel": 0,
"maintenance": false,
"theme": "",
"max_chunk_size": 20971520,
"maintenance_window_start": 18,
"mail_smtpmode": "smtp",
"mail_sendmailmode": "smtp",
"mail_smtpauth": true,
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"mail_smtpsecure": "ssl",
"mail_smtpauthtype": "LOGIN"
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 3.0.0
- app_api: 4.0.3
- bruteforcesettings: 3.0.0
- circles: 30.0.0
- cloud_federation_api: 1.13.0
- comments: 1.20.1
- contactsinteraction: 1.11.0
- dashboard: 7.10.0
- dav: 1.31.1
- federatedfilesharing: 1.20.0
- federation: 1.20.0
- files: 2.2.0
- files_downloadlimit: 3.0.0
- files_external: 1.22.0
- files_pdfviewer: 3.0.0
- files_reminders: 1.3.0
- files_sharing: 1.22.0
- files_trashbin: 1.20.1
- files_versions: 1.23.0
- firstrunwizard: 3.0.0
- logreader: 3.0.0
- lookup_server_connector: 1.18.0
- nextcloud_announcements: 2.0.0
- notifications: 3.0.0
- oauth2: 1.18.1
- password_policy: 2.0.0
- photos: 3.0.2
- privacy: 2.0.0
- provisioning_api: 1.20.0
- recommendations: 3.0.0
- related_resources: 1.5.0
- serverinfo: 2.0.0
- settings: 1.13.0
- sharebymail: 1.20.0
- support: 2.0.0
- survey_client: 2.0.0
- suspicious_login: 8.0.0
- systemtags: 1.20.0
- text: 4.1.0
- theming: 2.5.0
- twofactor_backupcodes: 1.19.0
- twofactor_totp: 12.0.0-dev
- updatenotification: 1.20.0
- user_status: 1.10.0
- viewer: 3.0.0
- weather_status: 1.10.0
- webhook_listeners: 1.1.0-dev
- workflowengine: 2.12.0
Disabled:
- admin_audit: 1.20.0
- encryption: 2.18.0
- twofactor_nextcloud_notification: 4.0.0
- user_ldap: 1.21.0
Compose
##### docker-compose.yml
services:
app:
container_name: nextcloud_app
image: nextcloud:${NEXTCLOUD_VERSION}
depends_on:
- db
- redis
links:
- db
- redis
environment:
- NEXTCLOUD_TRUSTED_DOMAINS=${DOMAIN}
- MYSQL_HOST=db
- MYSQL_PASSWORD=${MYSQL_PASSWORD}
- MYSQL_DATABASE=${MYSQL_DATABASE}
- MYSQL_USER=${MYSQL_USER}
- REDIS_HOST=redis
- NEXTCLOUD_ADMIN_USER=${NEXTCLOUD_ADMIN_USER}
- NEXTCLOUD_ADMIN_PASSWORD=${NEXTCLOUD_ADMIN_PASSWORD}
- OBJECT_STORAGE=1
- OBJECT_STORAGE_CLASS=\\OC\\Files\\ObjectStore\\S3
- OBJECT_STORAGE_BUCKET=${MINIO_BUCKET}
- OBJECT_STORAGE_AUTOCREATE_BUCKET=true
- OBJECT_STORAGE_REGION=ap-northeast-2
- OBJECT_STORAGE_ENDPOINT=${MINIO_ENDPOINT}
- OBJECT_STORAGE_ACCESS_KEY=${MINIO_ACCESS_KEY}
- OBJECT_STORAGE_SECRET_KEY=${MINIO_SECRET_KEY}
- SMTP_HOST=${NEXTCLOUD_SMTP_HOST}
- SMTP_PORT=${NEXTCLOUD_SMTP_PORT}
- SMTP_SECURE=${NEXTCLOUD_SMTP_SECURE}
- SMTP_NAME=${NEXTCLOUD_SMTP_NAME}
- SMTP_PASSWORD=${NEXTCLOUD_SMTP_PASSWORD}
- MAIL_FROM_ADDRESS=${NEXTCLOUD_MAIL_FROM_ADDRESS}
- MAIL_DOMAIN=${NEXTCLOUD_MAIL_DOMAIN}
volumes:
- ./data/nextcloud:/var/www/html
- ./config/nextcloud:/var/www/html/config
networks:
- cloud-net
db:
container_name: nextcloud_db
image: mariadb:11.4
command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
volumes:
- ./data/db:/var/lib/mysql
environment:
- MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
- MYSQL_PASSWORD=${MYSQL_PASSWORD}
- MYSQL_DATABASE=${MYSQL_DATABASE}
- MYSQL_USER=${MYSQL_USER}
networks:
- cloud-net
redis:
container_name: nextcloud_redis
image: redis:alpine
networks:
- cloud-net
cron:
container_name: nextcloud_cron
image: nextcloud:${NEXTCLOUD_VERSION}-apache
entrypoint: /cron.sh
depends_on:
- app
links:
- db
- redis
environment:
- NEXTCLOUD_TRUSTED_DOMAINS=${DOMAIN}
- MYSQL_HOST=db
- MYSQL_PASSWORD=${MYSQL_PASSWORD}
- MYSQL_DATABASE=${MYSQL_DATABASE}
- MYSQL_USER=${MYSQL_USER}
- REDIS_HOST=redis
- NEXTCLOUD_ADMIN_USER=${NEXTCLOUD_ADMIN_USER}
- NEXTCLOUD_ADMIN_PASSWORD=${NEXTCLOUD_ADMIN_PASSWORD}
- OBJECT_STORAGE=1
- OBJECT_STORAGE_CLASS=\\OC\\Files\\ObjectStore\\S3
- OBJECT_STORAGE_BUCKET=${MINIO_BUCKET}
- OBJECT_STORAGE_AUTOCREATE_BUCKET=true
- OBJECT_STORAGE_REGION=ap-northeast-2
- OBJECT_STORAGE_ENDPOINT=${MINIO_ENDPOINT}
- OBJECT_STORAGE_ACCESS_KEY=${MINIO_ACCESS_KEY}
- OBJECT_STORAGE_SECRET_KEY=${MINIO_SECRET_KEY}
volumes:
- ./data/nextcloud:/var/www/html
- ./config/nextcloud:/var/www/html/config
networks:
- cloud-net
networks:
cloud-net:
driver: bridge
##### docker-compose.override.yml
# version: '3'
services:
db:
restart: unless-stopped
# ports:
# - 3306:3306
app:
hostname: nextcloud
restart: unless-stopped
ports:
- 8080:80
redis:
restart: unless-stopped
cron:
restart: unless-stopped
Tips for increasing the likelihood of a response
- Use the
preformatted textformatting option in the editor for all log entries and configuration output. - If screenshots are useful, feel free to include them.
- If possible, also include key error output in text form so it can be searched for.
- Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.