### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 8, 2022, 9:30pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/8 "2022-11-08T21:30:23Z")
Here’s another example where I received the second post but not the OP:
> **[Help me understand basic error checking](https://discuss.python.org/t/help-me-understand-basic-error-checking/20849)**
>
> Trying to do some basic error checking. Only started with Python a few days ago. I’m confused why the following code does not work. No matter whether I start the program with 3 or 4 arguments, I always get the error message, and I don’t understand...
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 9, 2022, 8:57pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/9 "2022-11-09T20:57:27Z")
And another example where I received the second post and not the OP.
> **[Calling a class method in another class method?](https://discuss.python.org/t/calling-a-class-method-in-another-class-method/20871)**
>
> Hello everyone and sorry if I’m not in the right section it’s my first time posting here. I would like to know how you can use a class method in another method. Below you will have an example with the automaticshuffle method where I want to call...
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 11, 2022, 10:21pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/10 "2022-11-11T22:21:03Z")
And yet another example: [Why I can't do 'conda activate \' in JupyterLab? - Python Help - Discussions on Python.org](https://discuss.python.org/t/why-i-cant-do-conda-activate-env-in-jupyterlab/18034) where I have the second post but not the first. Although the OP is from August.
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 14, 2022, 4:59am UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/11 "2022-11-14T04:59:29Z")
And another: [os.scandir should have an option to also yield the path itself - Ideas - Discussions on Python.org](https://discuss.python.org/t/os-scandir-should-have-an-option-to-also-yield-the-path-itself/18383)
For this thread I only have post 6.
… and @martin can we undo the autoclose for this topic please?
---
### Author:  [@martin](https://meta.discourse.org/u/martin)
#### Post date: [November 14, 2022, 8:25am UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/12 "2022-11-14T08:25:09Z")
Apologies, lots going on at the moment internally. Thanks for sending through more examples, I will try to find a pattern from these.
> [@cameron-simpson](#):
>
> can we undo the autoclose for this topic please?
Do you mean this one on meta? Or the one you have linked to [os.scandir should have an option to also yield the path itself - Ideas - Discussions on Python.org](https://discuss.python.org/t/os-scandir-should-have-an-option-to-also-yield-the-path-itself/18383) ? Neither seem to have autoclose on.
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 14, 2022, 7:36pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/14 "2022-11-14T19:36:06Z")
> Apologies, lots going on at the moment internally. Thanks for sending
> through more examples, I will try to find a pattern from these.
No worries. And no hurry.
> > [@cameron-simpson](#):
> >
> > can we undo the autoclose for this topic please?
>
> Do you mean this one on meta?
This thread on meta. Yesterday(?) it was saying it would autoclose in 2
weeks, from your setting here:
> [@Discourse email messages are incorrectly threaded](https://meta.discourse.org/t/discourse-email-messages-are-incorrectly-threaded/233499/93):
>
> Thanks Cameron, great to hear! I’ll schedule this topic to close after another month, if it is closed and another issue comes up feel free to open another one slight_smile
But that seems now to be turned off, so all good.
Cheers,
Cameron Simpson [cs@cskk.id.au](mailto:cs@cskk.id.au)
---
### Author:  [@JammyDodger](https://meta.discourse.org/u/JammyDodger)
#### Post date: [November 14, 2022, 8:22pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/15 "2022-11-14T20:22:56Z")
> [@cameron-simpson](#):
>
> But that seems now to be turned off, so all good.
Sorry, that was me. 🙂 I removed the timer after I read your post asking for it to be turned off. I popped a little Like in as an acknowledgement, but it may have been too subtle a nod. 🙂
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 14, 2022, 8:26pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/16 "2022-11-14T20:26:20Z")
> [@JammyDodger](#):
>
> I removed the timer after I read your post asking for it to be turned off. I popped a little Like in as an acknowledgement, but it may have been too subtle a nod.
Too subtle for me. As you might guess from the thread I’m an email-first user.
But also, I read Snowcrash and didn’t notice the main character’s name was a pun. So you’re fighting an uphill battle with me if you’re going to use subtlety 🙂
Cheers,
Cameron
---
### Author:  [@martin](https://meta.discourse.org/u/martin)
#### Post date: [November 24, 2022, 4:40am UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/17 "2022-11-24T04:40:06Z")
> [@cameron-simpson](#):
>
> And another example where I received the second post and not the OP.
I am using this one as an example now. So far nothing has jumped out at me from stepping through the code. _No one_ got an email for the OP of that topic according to our `EmailLog` table but it’s not clear why, since if I run through the same steps as [discourse/app/jobs/regular/notify\_mailing\_list\_subscribers.rb at 23ac0cf8f1f5d7aede3991c6947530dc1af7f7a2 · discourse/discourse · GitHub](https://github.com/discourse/discourse/blob/23ac0cf8f1f5d7aede3991c6947530dc1af7f7a2/app/jobs/regular/notify_mailing_list_subscribers.rb) and stop short of sending the emails, it looks like the correct thing will happen. There are no records for the OP in `SkippedEmailLog` either. I suppose it’s possible that the job failed and then failed on every subsequent retry, but I doubt that.
I’ve just tweaked some things on our hosting for python to allow me to see more detailed logging information for these jobs. Please keep an eye out and let me know if you notice this happening again within the next couple of weeks, hopefully I will be able to hunt down the issue.
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [November 24, 2022, 9:24am UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/19 "2022-11-24T09:24:04Z")
> [quote=“Cameron Simpson, post:102, topic:233499,
> username:cameron-simpson”]
> And another example where I received the second post and not the OP.
> [/quote]
>
> I am using this one as an example now. So far nothing has jumped out at me from stepping through the code. _No one_ got an email for the OP of that topic according to our `EmailLog` table but it’s not clear why, since if I run through the same steps as [discourse/app/jobs/regular/notify\_mailing\_list\_subscribers.rb at 23ac0cf8f1f5d7aede3991c6947530dc1af7f7a2 · discourse/discourse · GitHub](https://github.com/discourse/discourse/blob/23ac0cf8f1f5d7aede3991c6947530dc1af7f7a2/app/jobs/regular/notify_mailing_list_subscribers.rb) and stop short of sending the emails, it looks like the correct thing will happen. There are no records for the OP in `SkippedEmailLog` either. I suppose it’s possible that the job failed and then failed on every subsequent retry, but I doubt that.
Right. I can’t see anything wrong with that code either, unless there
are weird issues with the `NOT EXISTS` stuff. But it looks ok to my
naive eye.
> I’ve just tweaked some things on our hosting for python to allow me to see more detailed logging information for these jobs. Please keep an eye out and let me know if you notice this happening again within the next couple of weeks, hopefully I will be able to hunt down the issue.
Thank you. I’ll keep you posted as I see new items.
Cheers,
Cameron Simpson [cs@cskk.id.au](mailto:cs@cskk.id.au)
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [December 23, 2022, 9:47pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/20 "2022-12-23T21:47:32Z")
Another example today: [Printing only duplicates from a list - Python Help - Discussions on Python.org](https://discuss.python.org/t/printing-only-duplicates-from-a-list/22154)
I received the second post but not the first:
```plaintext
[~/var/log/mailfiler]fleet2*> agf discourse/post/78942@discuss.python.org *log
main.log
5551250:2022-12-24 08:25:19,937 Level 25 mailfiler: monitor: +spool: +spool/new/1671830717.M998823P71474Q174.fleet2.l
5552015:2022-12-24 08:25:37,173 Level 25 mailfiler: monitor: +spool-in: +spool-in/new/1671830719.#5973M944325P789
spool-in.log
3606809:2022-12-24 08:25:37,173 Level 25 +spool-in/new/1671830719.#5973M944325P789
spool.log
3243627:2022-12-24 08:25:19,937 Level 25 +spool/new/1671830717.M998823P71474Q174.fleet2.l
[~/var/log/mailfiler]fleet2*> agf discourse/post/78934@discuss.python.org *log
[~/var/log/mailfiler]fleet2*>
```
shows grepping for the second post message-id in my logs and then the first post message-id, whcih is not seen.
Cheers,
Cameron
---
### Author:  [@cameron-simpson](https://meta.discourse.org/u/cameron-simpson)
#### Post date: [December 23, 2022, 9:56pm UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/21 "2022-12-23T21:56:39Z")
And another today: [Serve HTML from extensionless URLs in http.server - #2 by Rosuav - Ideas - Discussions on Python.org](https://discuss.python.org/t/serve-html-from-extensionless-urls-in-http-server/22164/2)
The timing coincidence (this and the preceeding instance are both this morning, after a period of apparent quiet) makes me wonder if we’re not looking at a plain old “should this go out?” logic bug but some wider circumstance where that doesn’t work, eg a restart of the Discourse instance or some other resource issue.
Similar grep of the reply message-id and then the in-reply-to (OP) message-id:
```plaintext
[~/var/log/mailfiler]fleet2*> agf discourse/post/78998@discuss.python.org *log
main.log
5553805:2022-12-24 08:42:48,500 Level 25 mailfiler: monitor: +spool: +spool/new/1671831759.M979332P32679Q9.fleet2.l
5553809:2022-12-24 08:42:48,522 Level 25 mailfiler: monitor: +spool-in: +spool-in/new/1671831768.#6332M514534P789
spool-in.log
3607754:2022-12-24 08:42:48,522 Level 25 +spool-in/new/1671831768.#6332M514534P789
spool.log
3244519:2022-12-24 08:42:48,500 Level 25 +spool/new/1671831759.M979332P32679Q9.fleet2.l
[~/var/log/mailfiler]fleet2*> agf discourse/post/78967@discuss.python.org *log
[~/var/log/mailfiler]fleet2*>
```
Cheers,
Cameron
---
### Author:  [@martin](https://meta.discourse.org/u/martin)
#### Post date: [January 3, 2023, 6:30am UTC](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792/22 "2023-01-03T06:30:12Z")
> [@Discourse email messages are incorrectly threaded](https://meta.discourse.org/t/discourse-email-messages-are-incorrectly-threaded/233499/115):
>
> The timing coincidence (this and the preceeding instance are both this morning, after a period of apparent quiet) makes me wonder if we’re not looking at a plain old “should this go out?” logic bug but some wider circumstance where that doesn’t work, eg a restart of the Discourse instance or some other resource issue.
Thanks for giving these two examples Cameron. It definitely could be something like that, perhaps something to do with our background jobs in Sidekiq erroring or having something else happen to them since they are stored in Redis.
> [@Discourse email messages are incorrectly threaded](https://meta.discourse.org/t/discourse-email-messages-are-incorrectly-threaded/233499/115):
>
> And another today: [Serve HTML from extensionless URLs in http.server - #2 by Rosuav - Ideas - Discussions on Python.org](https://discuss.python.org/t/serve-html-from-extensionless-urls-in-http-server/22164/2)
Confirmed there is no `EmailLog` record for your user in that topic for the OP. Nothing more is standing out to me so far though, this is a very frustrating bug to track down the cause of.
> [@martin](#):
>
> I’ve just tweaked some things on our hosting for python to allow me to see more detailed logging information for these jobs. Please keep an eye out and let me know if you notice this happening again within the next couple of weeks, hopefully I will be able to hunt down the issue.
Unfortunately this was only for 1 month so it since turned off again via an automated system, I just turned our detailed logging on again for 3 months then we can see if any more examples come in for Python that I can look at.
[Next page](https://meta.discourse.org/t/mailing-list-mode-emails-not-being-sent-for-some-first-posts/250792.md?page=2)