Magento2.3 Email not sending anymore

[Abdulkadiragoliya]

Preconditions (*)

1. Magento version #:Magento2.3.0
2. Php version #: 7.2.13

Steps to reproduce (*)

1. when contact form , create account or order placed happen email should send to customer and/or admin

Expected result (*)

1. when contact form , create account or order placed happen email should send to customer and/or admin
2. email should send to customer

Actual result (*)

1. when order placed or contact form submited

2. email not send to customer/admin

3. Exception log display Error : [2018-12-15 06:13:41] main.CRITICAL: Deprecated Functionality: idn_to_ascii(): INTL_IDNA_VARIANT_2003 is deprecated in /public_html/vendor/zendframework/zend-validator/src/EmailAddress.php on line 560 {"exception":"[object] (Exception(code: 0): Deprecated Functionality: idn_to_ascii(): INTL_IDNA_VARIANT_2003 is deprecated in /home/frankjewelers/public_html/vendor/zendframework/zend-validator/src/EmailAddress.php on line 560 at /home/public_html/vendor/magento/framework/App/ErrorHandler.php:61)"}

[magento-engcom-team]

Hi @Abdulkadiragoliya. 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-engcom-team give me $VERSION instance

where $VERSION is version tags (starting from 2.2.0+) or develop branches (for example: 2.3-develop).
For more details, please, review the Magento Contributor Assistant documentation.

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

• yes
• no

[Abdulkadiragoliya]

Yes

Hi @Abdulkadiragoliya thank you for you report, i'm, not able to reproduce following steps you described on clean magento 2.3 instance, this may be related to your custom code, or environment.

[aldf]

in magento: 2.3, php: 7.2 I got same error: Deprecated Functionality: idn_to_ascii(): INTL_IDNA_VARIANT_2003 is deprecated ..

so I downgrade php version to 7.1 then its work. http://php.net/manual/en/migration72.deprecated.php

or another solution is to upgrade icu to ICU 4.6 http://www.linuxfromscratch.org/blfs/view/8.3/general/icu.html

to check icu current vesion uconv -V

INTL_IDNA_VARIANT_2003 (integer) Use IDNA 2003 algorithm in idn_to_utf8() and idn_to_ascii(). This is the default. This constant and using the default has been deprecated as of PHP 7.2.0.

INTL_IDNA_VARIANT_UTS46 (integer) Use UTS #46 algorithm in idn_to_utf8() and idn_to_ascii(). Available as of ICU 4.6.

[hostep]

Thanks for the info @aldf

Could it be that https://github.com/magento/zf1/blob/1.14.1/library/Zend/Validate/EmailAddress.php#L455-L457 needs to be patched, the same way the zendframework/zend-mail package got fixed over here: https://github.com/zendframework/zend-mail/pull/189/files#diff-39993f6a028e96e169779688acedbfdc ?

In that case, this ticket should probably be re-opened.

And just add another reference to this issue: magento-engcom/php-7.2-support#12