Common Newsletter Email Unique IDs

When serving email ads, a Email User ID macro (EUID) is required for proper functionality. This macro must be provided by your newsletter service and must distribute with a unique ID for each recipient. Our list of known newsletter provider macros are shown below.

List of Known Newsletter EUID macros









Please note: Ad Items will not rotate properly or track clicks if the EUID is omitted or improperly configured.

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