How to permanently set mail for specific box in gmail

To permanently set a specific email address as the default "From" address for a specific Gmail account, you can follow these steps:

Method 1: Using Gmail's Settings

  1. Log in to your Gmail account.
  2. Click on the gear icon () in the upper right corner and select "See all settings."
  3. Go to the "Accounts and Import" tab.
  4. Click on "Send mail as" and then click on "Add another email address you own."
  5. Enter the email address you want to use as the default "From" address and click "Next."
  6. Click "Send verification" and follow the instructions to verify the email address.
  7. Once verified, click "Add account" and then click "Make default."
  8. Click "Save Changes" at the bottom of the page.

Method 2: Using Gmail's Filters

  1. Log in to your Gmail account.
  2. Click on the gear icon () in the upper right corner and select "See all settings."
  3. Go to the "Filters and Blocked Addresses" tab.
  4. Click on "Create a new filter."
  5. Enter the email address you want to use as the default "From" address in the "To" field.
  6. Click "Create filter."
  7. In the "Apply the label" dropdown menu, select "Apply the label" and then click "New label."
  8. Enter a name for the label (e.g. "Default From Address") and click "Create."
  9. Click "Apply" and then click "OK."

Method 3: Using Gmail's CNAME Records

  1. Log in to your domain registrar (e.g. GoDaddy, Namecheap, etc.) and create a CNAME record for your domain.
  2. Set the CNAME record to point to "ghs.google.com" and the TTL to 1 hour.
  3. Wait for the CNAME record to propagate (this may take up to 24 hours).
  4. Log in to your Gmail account and go to the "Settings" page.
  5. Click on the "Accounts and Import" tab.
  6. Click on "Send mail as" and then click on "Add another email address you own."
  7. Enter the email address you want to use as the default "From" address and click "Next."
  8. Click "Send verification" and follow the instructions to verify the email address.
  9. Once verified, click "Add account" and then click "Make default."
  10. Click "Save Changes" at the bottom of the page.

Note: The CNAME record method requires you to have control over your domain's DNS settings.

Once you've set up one of these methods, you can use the default "From" address for all new emails sent from your Gmail account.