adamrice / #email

https://mjml.io/

A markup language that compiles to html that works in e-mail clients.

https://www.guerrillamail.com/

Disposable Temporary E-Mail Address

https://fade.email/

Temporary, anonymous one-hour e-mail address

https://mykolab.com/

fee-based, supposedly secure and private mail & calendar service based in Switzerland

http://mailexpire.com/

What it says on the tin

http://litmusapp.com/email-testing

if you've got to create html e-mail, this looks to be worth the money.

http://www.email-standards.org/

Promotes correct rendering of html in e-mail clients

http://code.dunae.ca/premailer.web/

inspects and fixes html for email

http://www.sitepoint.com/article/code-html-email-newsletters/

Something I'd rather not need to know about.

http://www.jetable.org/en/index

disposable e-mail address service