"Send Payment Failed Email Copy To" field has no validate email

[edenduong]

Preconditions (*)

1. Magento 2.3-develop

Steps to reproduce (*)

1. Go to backend
2. Store->Configurations
3. Sales->Checkout
4. In "Payment Failed Email"->"Send Payment Failed Email Copy To", fill "test"
5. Save

Expected result (*)

1. Can not save because it is not email

Actual result (*)

1. Save normally

[m2-assistant]

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

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

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 2.3-develop instance - upcoming 2.3.x release

For more details, please, review the Magento Contributor Assistant documentation.

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

• yes
• no

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[m2-assistant]

Hi @ajijshekh123. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

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  Details

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[ajijshekh123]

Give me @magento give me 2.3-develop instance

[magento-engcom-team]

Hi @ajijshekh123. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @ajijshekh123, here is your Magento instance.
Admin access: https://i-24312-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[ajijshekh123]

It should accept the only email if this field is related to email value. Apply Email validation.
See attached the screenshot: