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I have this problem with subscription of newsletter but the address is successfully stored in the Database.

I have magento 2.2.2 fresh installation on server and allows php to send emails.

system log says

main.CRITICAL: Exception message: Unable to send mail. Trace: #0 /var/www/html/projectName/vendor/magento/module-newsletter/Controller/Subscriber/NewAction.php(136): Magento\Newsletter\Model\Subscriber->subscribe('test@domain...')

Mail sending settings enter image description here

Can someone help me on fix this error.

  • is email working on ur server ? Commented Jan 24, 2018 at 6:30
  • php email working on my server
    – Rathna
    Commented Jan 24, 2018 at 7:35
  • mail("[email protected]","My subject",'test'); are u able to recive any email send by this php function Commented Jan 24, 2018 at 7:37
  • Have u configurable Mail server on Magento 2?
    – Amit Bera
    Commented Jan 24, 2018 at 8:29

1 Answer 1


It is s genius error as your mail server is not working. Your mail server is not able to fire mail. Please check ur server setting.

  • Sorry, The problem was that I didn't realize that magento uses php-mail function.
    – Rathna
    Commented Feb 5, 2018 at 8:37

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