prometheus / prometheus/alertmanager
Document that smtp_smarthost does not support port 465
Nobody has claimed this yet.
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Description
The Alertmanager documentation for setting smtp_smarthost should state that port 465 is not supported, as explained here:
https://stackoverflow.com/questions/63557145/alertmanager-not-able-send-mails-via-port-465
This has caused me some unnecessary head scratching. After all, that issue has been known for years.
Sending e-mails over port 465 is very common. I have been using it for a long time without any issue, the first problem I ever had was actually with Prometheus' Alertmanager.
Some big providers recommend port 465, for example:
https://www.cloudflare.com/learning/email-security/smtp-port-25-587/
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the Alertmanager configuration documentation linked in the issue and find the smtp_smarthost setting. Add a note stating that port 465 is unsupported, using the linked references for context. Done means the limitation is clearly visible in the smtp_smarthost documentation.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 1/5
- Estimated time
- Under an hour
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 52/100