sending e-mail via ntfy not possible

[Chilipp]

Hey there! I wonder if anybody can send e-mails via ntfy and cloudron. I noticed that the app seems to be configured appropriately as described in https://docs.ntfy.sh/config/#e-mail-notifications in the config/server.yml file with

smtp-sender-addr: "mail:2465"
smtp-sender-user: "ntfy.app@my.cloudrondomain.com"
smtp-sender-pass: "some-autogenerated-password"
smtp-sender-from: "ntfy.app@my.cloudrondomain.com"

but when I try to send a notification via mail via command-line

ntfy publish -e xxx@somewhere.de -u <someuser> test-mail testmail

(xxx@somewhere.de and <someuser> are just placeholders here) I just see in the logs

INFO Sending email to xxx@somewhere.de (email=xxx@somewhere.de, message_body_size=8, message_event=message, message_id=..., message_sender=..., message_sequence_id=..., message_time=1783425961, message_user=..., tag=email, topic=test-mail, user_id=..., user_name=<someuser>, visitor_auth_attempts_remaining=30, visitor_emails=2, visitor_emails_limit=24, visitor_emails_remaining=22, visitor_id=ip:..., visitor_ip=..., visitor_messages=2, visitor_messages_limit=17280, visitor_messages_remaining=17278, visitor_requests_remaining=59, visitor_seen=2026-07-07T12:06:01.878Z, visitor_topic_creations_remaining=100)
INFO Server stats (emails_received=0, emails_received_failure=0, emails_received_success=0, emails_sent=0, emails_sent_failure=0, emails_sent_success=0, messages_cached=7, messages_published=6538, subscribers=6, tag=manager, topics_active=7, users=5, visitors=5)

but the mail is never sent. The same happens through the frontend, also when I try to verify emails in the account settings of the frontend.

Any idea what is going wrong here?

[fbartels]

I just stumbled upon this as well. At least for the email verification part. It seems one of the last releases has added email addresses for accounts and I wanted to add this to mine, but apart from this log line:

2026/07/10 11:09:58 INFO Resending email verification (email=xx@xx.eu, http_method=POST, http_path=/v1/account/email/resend, tag=account, user_id=xx, user_name=felix, visitor_auth_attempts_remaining=30, visitor_emails=2, visitor_emails_limit=24, visitor_emails_remaining=22, visitor_id=ip:xxx, visitor_ip=xxx, visitor_messages=0, visitor_messages_limit=17280, visitor_messages_remaining=17280, visitor_requests_remaining=19, visitor_seen=2026-07-10T11:09:58.274Z, visitor_topic_creations_remaining=92)

Nothing else happens. I also dont see any logging regarding this in the Cloudron event log for email.

[girish]

@chilipp @fbartels this should be fixed now. Issue was that ntfy is a Go app and it requires the mail configuration to have a valid certificate to send emails.

I also noticed that we don't require login by default. I enabled that as well in the config.

[fbartels]

Yes, I can confirm that the verification mail is now delivered.

But strange that ntfy did not give a proper error message here, I upped the logging to trace and could not find any more logging related to mail sending in ntfy.

[girish]

@fbartels yeah, ntfy "hangs". If you wait for a long time, you will see a 503 .

[robi]

time for an upstream PR?

[girish]

I think Go apps don't want to work with non-TLS mail servers (a bad decision, but who has energy to fight all this)

[robi]

@girish an agent does.