Smtp error: Failed to connect to server" - Causes and Fixes
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![mail_delivery_methods_in_lucy [LUCY]](https://wiki.lucysecurity.com/lib/exe/fetch.php?w=600&tok=489a06&media=mailrelaysettings.png "mail_delivery_methods_in_lucy [LUCY]")
mail_delivery_methods_in_lucy [LUCY]
How to configure an external SMTP server in Plesk – Plesk
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