Is there any way to know what kind of client (html or text-only) was used to open an email sent in some marketing campaign?
I sent my first campaign today and saw a few contacts in “Viewed message” section and a few in “Click-through link” section. But I didn’t saw one particular contact among none of those. While he didn’t appeared there he did responded to my email.
Is it correct to assume he used text-only email client?
I know for sure that he opened the email since he sent me a response.
How then that I don’t see this in SuiteCRM?
Tracking email receipts can be done in several ways
marking the email as “receipt requested”. Email clients can be configured to answer this automatically, but often they will ask the user whether they want to send the receipt, or not.
sending a “pixel”, a small image on our own server. When the email client renders that HTML, a request is made to our server, and we track that. Text clients won’t do anything.
The bottom line is: there is no 100% sure way of tracking this, you are always dependent on what the email client or the recipient decides to do.