craftcms / craftcms/cms

[4.x]: Update to Craft 4 Send email. OpenSSL Error Message: 0A00010B

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bug craft4
Dominant language
PHP
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Merged PRs (30d)
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Description

What happened?
Description

#12387

Hi,
I tried again, this time I got different error code.
image

I using OpenSSL s_client commands to test.
command:
openssl s_client -connect 10.40.100.234:465
Got same error code.
image

but this command is successful
command:
openssl s_client -starttls smtp -connect 10.40.100.234:465
image
image

Application Info:
image

Sorry, I don't know if these messages are helpful.

Thank you.

Craft CMS version

Craft Solo 4.5.2

PHP version

No response

Operating system and version

No response

Database type and version

No response

Image driver and version

No response

Installed plugins and versions

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing issue #12387 and reproducing the reported Craft 4.5.2 email failure with the provided OpenSSL commands. Compare the failing direct TLS connection with the successful STARTTLS connection, then verify that Craft can send email successfully using the affected SMTP configuration.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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