headers. @code{From} is a name of email sender (with email address
stripped off).
-Technically comments are stored in concatenated
-@url{https://en.wikipedia.org/wiki/Netstring, netstring}. Only
-@code{text/plain} or @code{multipart/signed+text/plain} email messages
-are accepted and only with UTF-8, US-ASCII, ISO-8859-1 character sets.
-Sane people won't send HTML email anyway, but this is just a precaution.
+Only @code{text/plain} or @code{multipart/signed+text/plain} email
+messages are accepted and only with UTF-8, US-ASCII, ISO-8859-1
+character sets. Sane people won't send HTML email anyway, but this is
+just a precaution.
+
+Comments are stored in @dfn{recfiles} --
+@url{https://www.gnu.org/software/recutils/, GNU recutils}
+human-editable plaintext database format. But they do not contain
+records description:
+
+@verbatim
+%rec: Comment
+%doc: SGBlog's comment
+%mandatory: From Date Body
+%type: Date date
+@end verbatim
@node Topics
@unnumbered Topics