At Advanced Cyber Solutions we often like to highlight customer success when we feel there has been a particular innovative approach take; and this blog post is no different.
We were recently posed a challenge by a large car parts supplier to collect order forms in the format of an email attachment, which would arrive in a designated ordering mailbox. Then to move them to a processing system for fulfilment.
Well, it would be if the customer was not using Office 365.
How MOVEit Automation Works with Email Attachments
Ipswitch MOVEit Automation is a fantastic solution used by tens of thousands of companies globally to move files from one location to another, automatically. However, one limitation is that its ability to connect to mailboxes for the collection of attachments is restricted to both POP3 and the insecure port of TCP 110.
While Office 365 does support POP3 access, Microsoft stopped the use of insecure ports for both SMTP and POP3 at the end of 2017.
In order to cure this problem, we used a free-to-download and open source tool called STunnel.
Stunnel runs as a service in the operating system of MOVEit Automation; and works by capturing traffic being sent on an insecure port and channelling it through a TLS negotiated port.
To MOVEit Automation, the connection is still using the insecure TCP 110 port, but that connection is being re-routed on the secure TCP 995. The best part is that STunnnel is highly configurable by way of a text-based configuration file, allowing for particular versions of TLS, custom ports and even hostnames to be used.
The STunnel Configuration File
For those seeking a similar solution, the configuration file entry for STunnel which worked for us is as follows: