We advise you not to exceed the dimensions 550 x 200 px for your banners.

More generally, the first reflex to have is to think of your email signature as a whole. So if your signature is 500 px wide, opt for a campaign of the same width.

When creating your email signatures, remember to test to see the space occupied by variable data. A function or a first name / surname can, for example, occupy more or less space.

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