Mails sent from php mail() not being recieved

Mails sent from php mail() not being recieved

Hi There

My email liam@splatwebsolutions.co.uk will not receive any emails that are sent by the php mail() function.  This is not specific to a server so please don't ask me for logs.  Whenever I do a password reset on any site that uses the php mail() function even a class such as PHPMailer, the email is not received in either my main inbox or my spam mailbox.  Do Zoho actively block these emails.  I have only realised today after about 1 month, and this could be a major problem for me.

Thanks