New account registration email not sent v2.3.1, 2.3.3, 2.3.4

[xtremevision]

Hi,

We've recently upgraded our store in staging from 2.3.1 to 2.3.4 and experienced problems with transactional emails not being sent (order confirmation, etc). We fixed this by applying the patch mentioned in ticket #25338 and then upgrading to 2.3.4.

However, we discovered new account registration emails are not being sent still (no welcome emails). We also discovered the same issue is happening on our production site, which is v2.3.1.

Any ideas?

Thanks,
Michael Mussulis

[m2-assistant]

Hi @xtremevision. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

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• Information on your environment
• Steps to reproduce
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Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento give me 2.4-develop instance - upcoming 2.4.x release

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@xtremevision do you confirm that you were able to reproduce the issue on vanilla Magento instance following steps to reproduce?

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[xtremevision]

@magento give me 2.4-develop instance

[magento-engcom-team]

Hi @xtremevision. Thank you for your request. I'm working on Magento 2.4-develop instance for you

[magento-engcom-team]

Hi @xtremevision, here is your Magento instance.
Admin access: https://i-26849-2-4-develop.instances.magento-community.engineering/admin_83a7
Login: cb172599 Password: a21a38e72074
Instance will be terminated in up to 3 hours.

[xtremevision]

I tried reproducing the issue on 2.4-dev, and I'm not getting any emails. I tried playing around with the backend settings, but I don't know if I it's a problem in 2.4-dev or your instance is not setup to send emails, or my smtp is rejecting them due spf/dmarc rules. I tried gmail and still nothing.

I did not get the new account welcome email, and neither the password reset email.

[xtremevision]

Steps to reproduce:

• Click on Create Account link
• Fill out the form and submit
• Wait for the welcome email

[FadyEffat]

I'm having the same issue with 2.3.3 and 2.3.4

[sfritzsche]

Do you have checked the
#25542
#25076
issues ?

These are for us the typical problems when sending emails (magento 2.3.3). Issue "25542" is related to error message "Invalid header value detected" in system.log.

[m2-assistant]

Hi @engcom-Delta. Thank you for working on this issue.
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[engcom-Delta]

Hi @xtremevision I'm not able to reproduce issue by steps you described on clean 2.4-develop
Result:
✔️ Welcome email is sent after customer was registered

Please feel free to comment, reopen or create new ticket according to the Issue reporting guidelines
if you are still facing this issue on the latest 2.4-develop branch. Thank you for collaboration.