Unfortunately, the random line break issue happens across the board -- Outlook, Gmail, AOL, Yahoo, Hotmail and various web clients. Even if you go to View Original Message or one of the similar options in each of those clients, the breaks are there. For example, this particular block of the plain text e-mail should always display as:
Venue Type : Industrial Loft
Description : This is a rentable loft space for retail events.
When I used to send using PHP's mail(), this block always rendered the same way. Now, I get any of the following:
Venue Type : Industrial
Loft
Description : This is a rentable loft space for retail events.
Venue Type : Industrial Loft
Description :
This is a rentable loft space for retail events.
Another example for a simple sentence in a stand-alone paragraph:
As part of our commitment to customer service, you can now reach your dedicated Client Services team from 9 AM - 9 PM.
It displays as any of the below:
As part of our commitment to customer service, you can now reach your dedicated
Client Services team from 9 AM - 9 PM.
As part of our
commitment to customer service, you can now reach your dedicated Client Services team from 9 AM - 9 PM.
It's so odd.