Email Design Email Signature 5

Question 1

A designer wants the signature to look sharp on Retina and other high-DPI screens. What is the standard technique?

Accepted Answer

Export images at 2x resolution and constrain them to half size with width attributes

Answer

Use images at exactly display resolution only

Answer

Increase the JPEG quality setting to 100

Answer

Use larger font sizes throughout

Question 2

Which approach correctly styles text in an email signature for maximum client compatibility?

Accepted Answer

Inline CSS applied directly to each element

Answer

An external stylesheet linked in the head

Answer

A style block using CSS classes only

Answer

JavaScript that injects styles at open time

Question 3

An employee updates their phone number, but old emails still show the previous number in the signature. Why?

Accepted Answer

Signatures are static content baked into each sent message, not dynamically updated

Answer

The mail server caches signatures for 30 days

Answer

Recipients must refresh their inbox to see updates

Answer

The signature image failed to sync

Question 4

What is the benefit of adding structured contact details rather than cramming everything on one line in a signature?

Accepted Answer

Clear visual hierarchy helps recipients quickly find the detail they need

Answer

It reduces the email's spam score to zero

Answer

Multi-line signatures compress better

Answer

Single-line signatures are blocked by Gmail

Question 5

During an email signature A/B test, what metric best indicates whether a signature call-to-action banner is effective?

Accepted Answer

Click-through rate on the banner link

Answer

The number of emails sent

Answer

The average email file size

Answer

The open rate of the emails

Question 6

Why might a signature that renders perfectly in a desktop preview break on mobile devices?

Accepted Answer

Fixed-width table layouts can exceed narrow mobile screens, forcing zooming or clipping

Answer

Mobile clients cannot display any HTML

Answer

Phones strip all images from signatures

Answer

Mobile screens invert all table layouts

Question 7

What is the safest way to include a call-to-action button in an email signature?

Accepted Answer

A bulletproof button built with table cells, background color, and padded linked text

Answer

A form with a submit button inside the signature

Answer

A JavaScript-powered button with hover effects

Answer

An iframe embedding the landing page