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In the email message, usually in the footer, an unsubscribe link is provided. A cancellation handled outside MailUp generally follows either of these procedures:

1. A link to an URL pointing to an external unsubscribe page is inserted into the email message;
2. The message contains a procedure allowing the user to unsubscribe (e.g. "To unsubscribe please send an e-mail to [...] with "UNSUBSCRIBE" as a subject heading").

In order to keep the database updated and avoid sending unsolicited messages to users who unsubscribed, MailUp administrator must then remove the address from subscribers in one of the following ways:

• Manual import of the list of unsubscribers (in csv/txt format)
• Call of API procedure xmlUnSubscribe.aspx (see API technical details)
• Disiscrizione manuale dell'utente mediante l'interfaccia di MailUp
• Importazione manuale elenco disiscritti (con copia e incolla)
• Importazione batch ftp automatica (es. notturna) di un elenco utenti da disiscrivere

In alternativa, l'amministratore può evitare di cancellare quegli utenti, avendo però cura di caricare in MailUp, prima di ogni invio, un elenco di iscritti al netto dei disiscritti in uno specifico gruppo, avendo l'accortezza di inviare il messaggio solo a quel gruppo. Questa modalità è più insicura, perché se l'amministratore sbaglia gruppo nell'invio, spedirà il messaggio anche a chi si era cancellato.
Anchor_Toc280715649_Toc280715649We recommend that you always include a MailUp unsubscribe link in any message sent via MailUp (unless the message does not require an unsubscribe, which is very rare).

In some cases, however, some MailUp users elect to use an unsubscribe link that points to a different system (e.g. an internal CRM), or not to include an unsubscribe link and provide the recipient with different unsubscribe instructions (e.g. "Reply to the message with...").

In that scenario:

• the must unsubscribe preference is passed to MailUp as soon as possible
• There are many ways to do so, and they are listed here 
• A risky alternative is not to update the MailUp system with the unsubscribe preference (not recommended!!), and instead do the following:
  • Import the unsubscribed recipients into a dedicated Group right before sending the next campaign
  • Exclude that Group when choosing recipients for the campaign
  • In this setup, the Group works as a suppression list for that campaign