new: [bluesky] add ``email-from`` option to set email field for confirmation

bluesky/README.org

@@ -30,7 +30,6 @@ provide settings for an external SMTP service:
 
 #+begin_src yaml
 bluesky:
-  charm: bluesky  ## line is optional if your service name is "bluesky"
   # ...
 
 myemail:
@@ -43,6 +42,16 @@ myemail:
     password: mypassword
 #+end_src
 
+Your SMTP might require a sensible email-from field, so to set it:
+
+#+begin_src yaml
+bluesky:
+  # ...
+  options:
+    email-from: no-reply@mydomain.com
+#+end_src
+
+
 ** request a new invite
 
 To be able to add account, you need to create new invites from your

bluesky/lib/common

@@ -64,4 +64,9 @@ PDS_CRAWLERS=https://bsky.network
 LOG_ENABLED=true
 EOF
 
+    if email_from=$(options-get "email-from" 2>/dev/null) && [ -n "$email_from" ]; then
+        echo "PDS_EMAIL_FROM_ADDRESS=${email_from}" >> "$PDS_ENV_FILE"
+    fi
+
+
 }