Serverless mail send and reply using cloudflare and gmail

Requirement

• A gmail account
• A domain added to cloudflare
• No mail server self-hosting

What you will get

• Send and reply email using “[email protected]”
• No worries about all spam, blocking

notice this should also work with other email providers, with little tweaks.

cloudflare side

1. Login to cloudflare dashboard, go to Websites -> chose your site -> Email Routing
2. Add rules in Routing rules section, the alias will be [email protected]-ish
3. An email will be sent to your gmail for verification

gmail side

1. Google Account Setting -> Security -> enable 2-Step Verification
2. Goto https://myaccount.google.com/apppasswords, create an app password(will be used later), copy the password (remove the space in between!)
3. Goto mail settings -> Accounts and Import, in the Send mail as section, choose add,
4. A window pops up, and
   • The first page is about the mail alias we talked in last section. Normally you would also uncheck “Treat as an alias.”
   • The second window is not the cloudflare SMTP settings! SMTP Server: smtp.gmail.com, Username: the gmail name(without @gmail.com), Password: the SMTP app password you generated before
   • Check you inbox for a verification mail and youre good to go!

ps: You can also “make default” your alias in the Send mail as section if you like:)