ERROR SMTPClient - SMTPSessionNotStartedError

[mascor]

Hi,
sometimes the email is not sent and is labeled with a "SOFT FAIL".
The logs report this error:
"ERROR SMTPClient::Endpoint::SMTPSessionNotStartedError: SMTPClient::Endpoint::SMTPSessionNotStartedError log_id=TKR6WEB9 component=worker thread=work0 original_queued_message=98991 queued_message=99008"

What are these errors due to?
Thanks

[willpower232]

Where are you seeing that information? Can you share a screenshot?

[mascor]

Hi, if I try to execute:
postal logs smtp
it shows only this:

[willpower232]

Have a look for WSBSBYIF in the worker log and see if you can find all related rows, it should clarify what happened with that message

[jarqvi]

I had the same problem, but after a little research, I realized that the domain I want to send an email from has unconfirmed DNS records. Actually, the problem was with the DNS records of the domain I wanted to send an email from.

[jmduke]

I'm running into a similar issue. It's not impacting all traffic, but a non-trivial portion. Here's what I see in logs:

worker-1  | 2024-09-05 11:45:06 +0000 ERROR  Net::SMTPServerBusy: 421 Max message per connection reached, closing transmission channel tnmpmscs
worker-1  |  log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442089
worker-1  | 2024-09-05 11:45:06 +0000 INFO   message requeued for trying later retry_after=2024-09-05 11:50:06 UTC component=worker thread=work0 original_queued_message=441819 queued_message=442089
worker-1  | 2024-09-05 11:45:06 +0000 INFO   parsing message content as it hasn't been parsed before component=worker thread=work0 original_queued_message=441819 queued_message=442096
worker-1  | 2024-09-05 11:45:06 +0000 INFO   Sending message 1::442096 to [email protected] log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442096
worker-1  | 2024-09-05 11:45:06 +0000 ERROR  SMTPClient::Endpoint::SMTPSessionNotStartedError: SMTPClient::Endpoint::SMTPSessionNotStartedError log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442096
worker-1  | 2024-09-05 11:45:06 +0000 INFO   message requeued for trying later retry_after=2024-09-05 11:50:06 UTC component=worker thread=work0 original_queued_message=441819 queued_message=442096
worker-1  | 2024-09-05 11:45:06 +0000 INFO   parsing message content as it hasn't been parsed before component=worker thread=work0 original_queued_message=441819 queued_message=442098
worker-1  | 2024-09-05 11:45:06 +0000 INFO   Sending message 1::442099 to [email protected] log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442098
worker-1  | 2024-09-05 11:45:06 +0000 ERROR  SMTPClient::Endpoint::SMTPSessionNotStartedError: SMTPClient::Endpoint::SMTPSessionNotStartedError log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442098
worker-1  | 2024-09-05 11:45:06 +0000 INFO   message requeued for trying later retry_after=2024-09-05 11:50:06 UTC component=worker thread=work0 original_queued_message=441819 queued_message=442098
worker-1  | 2024-09-05 11:45:06 +0000 INFO   parsing message content as it hasn't been parsed before component=worker thread=work0 original_queued_message=441819 queued_message=442105
worker-1  | 2024-09-05 11:45:06 +0000 INFO   Sending message 1::442105 to [email protected] log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442105
worker-1  | 2024-09-05 11:45:06 +0000 ERROR  SMTPClient::Endpoint::SMTPSessionNotStartedError: SMTPClient::Endpoint::SMTPSessionNotStartedError log_id=YPXELCKH component=worker thread=work0 original_queued_message=441819 queued_message=442105
worker-1  | 2024-09-05 11:45:06 +0000 INFO   message requeued for trying later retry_after=2024-09-05 11:50:06 UTC component=worker thread=work0 original_queued_message=441819 queued_message=442105

[jmduke]

I suspect this might actually be related to / solved by #3031?

[solracsf]

Same problem here.

[niels-przybilla]

Hello,

I have. similar issue ... Only with one domain I am sending too.

It started like this:

SMTPClient::Endpoint::SMTPSessionNotStartedError

Time: 0.0s

Support Ref: 3YVV9AWS

and then later it transforms to

Net::ReadTimeout with #TCPSocket:(closed)

Time: 60.3s

Support Ref: 3YVV9AWS

Any idea?

many thanks for your help.

[UEAB-BL]

I think Im having a similar issue, posted about it here:
https://github.com/orgs/postalserver/discussions/3232
Almost feels like something is done improperly and then we get IP blocked or something.

[plancked]

I'm also getting this, and it looks like it's only from Yahoo servers.
It's a temporary ban? why though?