Switch closure sends email message

Application - I want to receive an email when the water in a tank reaches a "critical" level. Using a float switch (N.O.) at the "notify now" level.

I thought this would be very easy with an Arduino Uno and a W5100 Ethernet board.
Internet service is through Comcast and thought I could find some "Send and email" code to use in a sketch. I thought Comcast allowed for sending of emails without SSL if the device was on Comcast's network. I found the code, but found all of Comcast's SMTP servers require SSL. And Unos do not support SSL. Time to redesign.

Trying to keep this simple and reliable. Not interested in running a SMTP server, use PHP code or buy/pay for a 3rd party service such as SMTP2Go when I can use Comcast's SMTP server or Gmail.

Option #1
Is to buy something like this https://www.controlbyweb.com/xw111/

Option #2
Not sure about this.... Use the Uno with Ethernet shied/W5100 with IFTTT. Does IFTTT work with Arduino?

Option #3
ESP8266 - Not sure about this one. I've found some indicating this might work. But I know very little about the 8266. So this is something I would have to learn and it appears it's 3v which just makes things a bit more complicated.

Option #4
Maybe you have a better idea?

Not sure if folks are aware of this, but Verizon supports email to SMS. So SMS text messages can be sent via email.

Thanks for any suggestions