List-Unsubscribe is not working using postal server

[hassanm3456]

I am trying to add List-unsubscribe using postal but it not working. Above image has our request data which we sent but no luck.

If someone knows about this please let me know. What should i do to resolve this issue?

[willpower232]

when you say its not working, what about it isn't working? You're successfully adding a header as your screenshot shows (i.e. Postal has done its job) so do you need to slightly change the way you're adding the header?

[hassanm3456]

No even we are adding headers but unsubscribe link is not visible in outlook or gmail but when i tested same with sendgrid passing same headers it is working

[hassanm3456]

My question is do we need to do something else to make it visible in outlook or gmail instead?

[willpower232]

The header looks good to me but I am not an expert in this area. If you have a working example then you can probably compare all the headers in the messages to see what the difference is.

[gdiazblipblip]

About this , dou yo have some piece of code please, using PostalServerDotNEt NugetPackage.. I am using the available one, but not sure what method to use to send messages and to add custom headers

Thank you