Namespace

HI,

you should try to use namesapce for class as your class class.smtp.php is is extending class SMTP,

i am using Sendgrid’s official plugin to replace wordpress mail with Sendgrid emails
and your plugin is trying instantiate the sendgrid’s SMTP class as the sendgrid’s smtp class is also named SMTP and you plugin is failing sue to mismatch of funtion names which your plugin expects to be available but not available due to it is actually usind sendgrid’s smtp class

https://www.ads-software.com/plugins/mymail-sendgrid-integration/