troubleshooting Question

PHP Mailer Not Sending to Some Recepients

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APD TorontoFlag for Canada asked on
Web DevelopmentPHPWeb ServersEmail ServersEmail Protocols
4 Comments1 Solution119 ViewsLast Modified:

This is related to

I’m testing sending out automated emails from but not all are going through. For example, when I send to I get “..mailbox unavailable or not local…”.

Please ignore “email sent” in this instance, because I quickly wrote the script without any error testing. However, it is sending to the following (hosted by Microsoft, also mailbox is not local, but working) (hosted by Google, not local and working)

One thing that I found strange when receiving the credentials for as user is that said that if I want to encrypt emails, I need to purchase SSL. I know usually the SSL is for the server side, not client side. I am thinking that maybe that the is some type of a budget server, but I cannot see how this relates to my script, which is at another server, and it should come down to sending a regular email. Manually, you are  able to email

What could it be?
APD Toronto
Software Developer

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