You can add a vertical divider to your email signature by applying a border to a table cell.
This method is simple and works well across most email clients when using table-based layouts.
Example
In this example, a vertical line is created using the border-left property on a table cell:
... <td style="border-left: 1px solid #888888;">1px grey line</td> ...
How it works
The border-left property adds a vertical line to the left side of the table cell. The thickness, style, and color can be adjusted:
- 1px = line thickness
- solid = line style
- #888888 = line color
Best Practice
- Use table-based layouts for consistent rendering across email clients
- Keep the border subtle (e.g., 1px) for a clean design
- Add padding or spacer cells to create visual spacing around the divider
- Test in Outlook, Gmail, and mobile clients to confirm consistent appearance
