updated examples for TLS

docs/Dev.md

@@ -29,4 +29,23 @@ Note that if you change cour config.ini, the mail server needs to be restarted b
 
 ```bash
 cat "tools/testmail.txt" | while read L; do sleep "0.2"; echo "$L"; done  | "nc" -C -v "localhost" "2525"
-```
+```
+
+### Via TLS
+
+Testing with the TLS version (non-plaintext).
+Needs config options `MAILPORT_TLS`, `TLS_CERTIFICATE` and `TLS_PRIVATE_KEY` set.
+
+```bash
+echo 'Testing' | swaks --to test@example.com --from "something@example.com" --server localhost --port 465 -tlsc
+```
+
+### Via STARTTLS
+
+STARTTOS runs on the default plaintext port and is just a option for servers to upgrade to TLS but starts in plaintext.
+Needs config options `TLS_CERTIFICATE` and `TLS_PRIVATE_KEY` set.
+
+Testing STARTTLS version
+```bash
+echo 'Testing' | swaks --to test@example.com --from "something@example.com" --server localhost -tlsc
+```

example.config.ini

@@ -33,7 +33,7 @@ MAILPORT=25
 
 ; TLS settings
 ;
-; MAILPORT_TLS=587
+; MAILPORT_TLS=465
 ; TLS_CERTIFICATE=/path/to/your/fullchain.pem
 ; TLS_PRIVATE_KEY=/path/to/your/privkey.pem