There are two ways to verify that emails are getting through that come to mind.
1.) Automated email Return Receipt.
a) Create a database in your email client outside of the SFI system.
b) Send the email with a return receipt requested tag attached.
c) When the email is opened, their email client will prompt them to authorize the sending of a return email to you which confirms that the email was opened.
d) If they allow it, an email will come to you that confirms receipt.
2.) Pose a question and ask them to respond.
These are the only ways that I am aware of to be sure that the messages are getting through.
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There are two ways to verify that emails are getting through that come to mind.
1.) Automated email Return Receipt.
a) Create a database in your email client outside of the SFI system.
b) Send the email with a return receipt requested tag attached.
c) When the email is opened, their email client will prompt them to authorize the sending of a return email to you which confirms that the email was opened.
d) If they allow it, an email will come to you that confirms receipt.
