Adds a \ to my username

Hello, I’m hosting my client’s site on WP Engine. They don’t provide email with their hosting. I’m using Gravity Forms as their contact form. But Yahoo.com emails are bot getting sent to my clients. So WP Engine told me about your plugin. It works great for my clients with gmail, etc. But I’ve got a client with local email from a local IT company. When I add the username, it has a back slash in it. Every time I save the settings, another back slash is added to the SMTP username. For example, let’s say that the SMTP username is XYZ.local\joe, when I add that username to the settings and save the settings on your plugin, it changes to XYZ.local\\joe. Do you know how to alleviate this problem?

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