Set up Ghost with Mailgun on Google Conputer Engine

First please refer to :

As you may know, Google Cloud Platform doesn't allow outbound connection to ports 25, 465 and 587.

So you just change port of MailGun to other port such as 2525, it will work.

  "mail": {
    "transport": "SMTP",
    "options": {
        "service": "Mailgun",
        "port": 2525,
        "auth": {
            "user": "yourname",
            "pass": "yourpasswd"

When you have finished making changes to you config file don't forget to restart Ghost. ( ghost restart )

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