I installed the Magetop_Smtp extension but when I installed this extension then When I clicked on Place Order Button in checkout then nothing happens also when I create a new account of user then it gives me an error Fatal error: Class 'Zend_Application_Resource_Mail' not found in C:\xamppp\htdocs\magentoo\app\code\Magetop\Smtp\Mail\Rse\Mail.php on line 31 What is the issue n how can I sort this. enter image description here

  • Try other SMTP Mageplaza or MagePal – anonymous Oct 24 '19 at 8:23
  • I tried Mageplaza one as well in that same issue occurs – Asad Khan Oct 24 '19 at 8:41
  • ' does not match the expected structure for a DNS hostname, '' does not appear to be a valid URI hostname, '' does not appear to be a valid local network name magento 2 this issue on MagePal testing – Asad Khan Oct 24 '19 at 9:26
  • I'm using Magepal gmail its working no issue for me. Your email address has to be less secure in order to use SMTP otherwise it will failed to send authentication. – anonymous Oct 24 '19 at 9:30
  • Yeah I just installed Magepal but I test it then it give me the above issue... can you please share you configuration it will help me that where I'm doing mistake – Asad Khan Oct 24 '19 at 9:34

I have experienced this issue, its caused by email attachment.

If you using any extension for attachment try to disable it first and try the process again.

If the source is email extension so you to contact the publisher of that extension for the support

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  • No I do not use anything... I think but not sure that this is the version issue – Asad Khan Oct 24 '19 at 7:52
  • on which version you were working on this – Asad Khan Oct 24 '19 at 7:52

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