mail_deliver_success

[supertwister]

Hi cherti, Can you describe how does the metric mail_deliver_success works?

I've configured the the parameter mailchecktimeout to 3m. For some reason, Although i can confirm than the mail has been received after a few seconds in the mailbox, I get timeout warning in the logs.

Here are the logs:

Jul 24 16:02:44 ip-10-60-10-69.eu-west-1.compute.internal mailexporter[27915]: DEBUG: composed payload: test-mail-MaY2HzByNBSad6XTfuO1QBJNo3h6PlkFXYHJzdgo-1532437364432026232
Jul 24 16:02:44 ip-10-60-10-69.eu-west-1.compute.internal mailexporter[27915]: DEBUG: sending mail
Jul 24 16:05:44 ip-10-60-10-69.eu-west-1.compute.internal mailexporter[27915]: WARNING: Delivery-Timeout, Message-ID: test-mail-MaY2HzByNBSad6XTfuO1QBJNo3h6PlkFXYHJzdgo-1532437364432026232@domain.com

Here is a screenshot of the email, Where you can see that the email has been received less than a 3 minutes after been sent:

[cherti]

mailexporter puts an inotify-watcher onto the configured directory and (if everything works correctly) gets the file that is created for the incoming mail once it is created, reading it, looking up if there is any probe pending with that payload and if there is, sets mail_deliver_success to 1. If the timeout runs out before any mail receive is detected, the token is disposed, mail_devliver_success is set to 0. And if the mail comes later when the token is already over timeout/any mail comes in with an unknown token, the counter mail_late_mails_total gets increased by 1.

So for debugging your problem:

• does mail_late_mails_total gets increased by 1 at some point? if mailexporter detects the mail eventually, this should be the case.
• Are the permissions set such that mailexporter can read the file from the directory? are you running mailexporter as root or as a dedicated prometheus-user or as root?
• Which system are you running mailexporter on? is inotify available on that system?

[supertwister]

I'm running mailexporter as root.

My OS is Centos 7. inotify was not installed on my server. I have installed it according to this guide. It's seems that directory that has been configured as detectiondir is always empty (Before and after the installation of inotify).

What could be the issue?

[cherti]

Is your mailserver configured to be based on maildir? if that's the case: in which directory does the mail file end up and what is detectiondir configured to be?

[cherti]

Given the lack of activity in this issue, I consider it stale for now. If your problem still persists, feel free to reopen.