Dear all, first of all, nice to meet you!
I am currently working on an implementation of an email client with lwIP 2.1.0 and I need to add TLS security so that I can communicate with the Gmail SMTP server. I can see in *smtp.c* that there are functions to implement the TLS layer on top of TCP however I'm not entirely sure where to start. What's the information I should pass to the *smtp_set_tls_config(struct altcp_tls_config *tls_config) *function? Do I need to embed the certificates from Gmail in my implementation ( https://support.google.com/a/answer/6180220?hl=en)? Sorry for all the questions, I'm just looking for a place to start with this as I'm pretty new to the TLS cryptographic protocol. Any hint will be greatly appreciated. Looking forward to hearing from you. Manuel
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