Can't set up scanning to email MFP H825cdw

I bought the H825cdw a couple of years back, new from Dell, because I do a lot of work from home. When I work from home, I use a Citrix portal to access my work account. Because of the Citrix settings, I cannot scan from my printer through Citrix, I can only scan to my personal computer. 

I'd like to scan to email, so I can just email these documents directly to my work email address. However, after trying for hours to follow the directions in the owner's manual, and some very similar directions I found in this community, I'm still getting an error message when I scan. The screen on the printer says "Could Not Resolve SMTP Server Name. Check that SMTP Server and DNS Server are set correctly. Job cancelled." 

I use GMail for my personal mail. Here are my settings as entered in my browser access to my printer: 

Menu: Print Server Settings/Print Server Settings/TCP/IP

• Enable is checked for Get DNS Server Address from DHCP in DNS

Menu Print Server Settings/Email Server

• Primary SMTP Gateway - smtp.gmail.com
• SMTP Port Number = 465
• E-Mail Send Authentication drop down = SMTP AUTH (Login)
• SMTP Login User = my personal gmail email address
• SMTP Login Password = the password for my printer as set my Google
• Reply Address = my personal gmail email address 
• Click Apply New Settings (wait three or more minutes for printer to restart and browser detects printer again)

Menu: Print Server Settings/Security/SSL/TLS

• Selected SSL/TLS
• Click Apply New Settings

Added two or three names to email address book, with email addresses

Tried to scan to email. Document scans, but then I get the error message.

Since I'm working from home, I am not on any network servers, but the printer is connected to my computer via WiFi. 

Any advice on how to get this to work for me? 

Thanks in advance!!!