Decreasing SPAM score with an alt="default_value" tag for the invisible.gif.

[Anonymous]

Every email sent by Marketo takes a small SPAM score hit because the <img src="invisible.gif" /> does not have an alt tag.  There should at least be a place in the administration interface to set a default value.

[Anonymous]

Fixed in the June release that is rolling out this week.  There will be an alt tag for the tracker image in emails by default