Number of custom recipient fields

The MailUp platform has 39 custom fields available: they are called Recipient fields. Specifically, each recipient in the contact database contains:

Several of the 39 custom fields are set up by default (and you can certainly edit them).

To locate Recipient fields in the admin console, go to Settings > Account settings > Recipient fields

Managing recipient fields

Use this menu to configure the parameters of existing recipient fields, and to add new ones.

The page contains five columns with recipient fields data:

* The Default value: 

  • is not used during the creation of a recipient (regardless of how it is created): that field will not be populated with the default value when the recipient is created
  • is not used in forms that contain that field (example: a registration form): same as above.
  • is only used when the field is inserted into a message as a dynamic field. When the field is empty for a recipient, the default value is inserted into the message (for more information see: using dynamic fields)

The action menu on the right side allows you to:

Using recipients fields

Recipient fields are used in a variety of scenarios.

The official answer is complex because it depends on the encoding used for that list.


1) Each recipient field has a maximum length of 200 bytes

2) By default encoding set to a list is UTF-8, which uses from 1 to 4 bytes per character most cases 100 characters work in the recipient field