I support a handful of MaxBulk users on Macs here, and we are finding that when we update to 8.7, the preview mode no longer displays images. I have 8.6.9 installed alongside 8.7 on my machine, and 8.6.9 displays preview just fine while 8.7 does not.
We tried changing an http image call to https (ssl) but that had no effect.
No firewall rules are different between the two, and network is the same. (It was happening to one user from off network.)
I'm all out of theories. Any suggestions?
Answer: Starting with MaxBulk Mailer 8.7, the 'Preview' panel no longer displays pictures referenced by addresses starting with 'http://' like before. It turns out that Apple announced a new security requirement for iOS and OS X apps: App Transport Security.
From Apple’s docs:
Starting in iOS 9.0 and OS X v10.11, a new security feature called App Transport Security (ATS) is available to apps and is enabled by default. It improves the privacy and data integrity of connections between an app and web services by enforcing additional security requirements for HTTP-based networking requests. Specifically, with ATS enabled, HTTP connections must use HTTPS (RFC 2818). Attempts to connect using insecure HTTP fail. Furthermore, HTTPS requests must use best practices for secure communications.
This change matters to you because MaxBulk Mailer is now using the updated Apple libraries that have this requirement. Simply stated, it means that your URLs have to be secure (https), MaxBulk Mailer now only supports https links!
MaxBulk Mailer is a full-featured and easy-to-use bulk mailer and mail-merge software for macOS and Windows that allows you to send out customized press releases, prices lists, newsletters and any kind of text or HTML documents to your customers or contacts.
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