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Hi. I'm having this weird behavior. I'm sending a newsletter only to my client's employees and sales network. The company uses Outlook. The problem is that as soon as emails arrive I get a few automatic unsubscribes. I talked to these people and they swear they haven't clic on the unsubscribe button. One hasn't even open the email because she is on vacations and has no email access. I tried to search for automatic unsubscribe features on Outlook and couldn't find anything about it.
Does anyone else suffer this? Any clues were this configuration is done in Outlook?
Sendy does not automatically unsubscribe anyone randomly when you send out a campaign to your list(s). There is absolutely no reason and no code involved for Sendy to do that.
As part of email marketing's best practice, Sendy includes a List-unsubscribe header in each email sent. This List-unsubscribe header contains the unsubscribe link unique for each recipient and is used by email clients to display a native 'Unsubscribe' link at the top of the message if they choose to. Gmail for example displays a native unsubscribe link at the top of an email they think is a newsletter:
The unsubscribe link points to the unsubscribe URL found in the List-unsubscribe header.
Not all email clients or ISPs uses the List-unsubscribe header this way though, some uses this List-unsubscribe header data to unsubscribe a user when they think the email is spam. For example some corporate email servers unsubscribes the user with this data when they think the email is not important. How email clients or ISPs use the List-unsubscribe header is out of anyone's control. The solution is to contact their email service provider with regards to this behavior.
Thanks Ben. I always thought this was on the client's side, not on sendy. I think the key is "....some corporate email servers unsubscribes the user with this data when they think the email is not important". I'll try to dig on this with them.