Invalid "From" e-mail address ""

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  • Hey,

    I had this issue too. Turns out that there’s actually a hidden option to disable email validation, which totally fixed the issue for me.

    The only problem is finding it.

    You have to go into the Postman SMTP settings > open the developer console (Inspect element in Chrome”) > search for “disable_email_validation” > change the CSS so that you can see it and then check the checkbox.

    Not sure why it’s not visible in the first instance but this is a definite fix!!

    @liamhassimi,

    Thanks for the tip! When I upgraded from WooCommerce 2.6.14 to WooCommerce 3.0.5, WooCommerce stopped sending new order notifications. I haven’t completely figured out what’s going on, but the Postman SMTP log shows that e-mails sent by WooCommerce 3.0.5 have a blank Reply-To e-mail address (which fails Postman SMTP E-mail validation). Postman SMTP log entries for e-mail sent by WooCommerce 2.6.14 do not have a Reply-To e-mail address. While I don’t know why WooCommerce 3.0.5 is adding a blank Reply-To e-mail address (could possibly be a WooCommerce 3.0.5 bug), disabling e-mail validation in Postman SMTP allowed new order notifications to be sent from WooCommerce 3.0.5.

    Note that in Postman SMTP 1.7.2, the “disable e-mail validation” option is visible under the Settings->Show All Settings->Message Tab.

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