X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=Documentation%2Flei-mail-formats.pod;h=3c37c88046b6c508eb0094e1c0c813ddeb450058;hb=81d53eb6d390a3fbfc67e4630c1fded12688b134;hp=8accedb49616f2e277760cf4c3e6b65ea123d559;hpb=5347be86e7dba569276b5e0b9e3d86d2e7cc5bc8;p=public-inbox.git

diff --git a/Documentation/lei-mail-formats.pod b/Documentation/lei-mail-formats.pod
index 8accedb4..3c37c880 100644
--- a/Documentation/lei-mail-formats.pod
+++ b/Documentation/lei-mail-formats.pod
@@ -51,7 +51,9 @@ with any number of C<E<gt>> characters and is thus fully
 reversible.
 
 This format is emitted by L<PublicInbox::WWW(3pm)> with gzip.
-It is supported by L<git-am(1)> since git 2.10.
+Since git 2.10, C<git am --patch-format=mboxrd> reads this
+format.  C<git log> and C<git format-patch --stdout> can also
+generate this format with the C<--pretty=mboxrd> switch.
 
 As with uncompressed L</mboxo>, uncompressed mboxrd are vulnerable
 to undetectable truncation.
@@ -82,7 +84,13 @@ mbox.
 =head1 MH
 
 Not yet supported, locking semantics (or lack thereof) appear to
-make it unsuitable for parallel access.
+make it unsuitable for parallel access.  It is widely-supported
+by a variety of MUAs and mailing list managers, however.
+
+=head1 MMDF
+
+Not yet supported, and it's unclear if current usage/support makes
+it worth supporting.
 
 =head1 IMAP
 
@@ -90,6 +98,22 @@ Depending on the IMAP server software and configuration, IMAP
 servers may use any (or combination) of the aforementioned
 formats or a non-standard database backend.
 
+=head1 eml
+
+A single raw message file.  C<eml> is not an output format for lei,
+but accepted by as an C<--input-format> (C<-F>) for read-only
+commands such as L<lei-tag(1)> and L<lei-import(1)>.
+
+Since C<eml> is the suffix for the C<message/rfc822> MIME type
+(according to the C<mime.types> file), lei will infer the type
+based on the C<.eml> suffix if C<--input-format> is unspecified
+
+C<.patch>-suffixed files generated by L<git-format-patch(1)>
+(without C<--stdout>) are C<eml> files with the addition of an
+mbox C<From > header.  L<lei(1)> removes C<From > lines to treat
+them as C<eml> when reading these for compatibility with
+C<git-am(1)> and similar tools.
+
 =head1 COPYRIGHT
 
 Copyright 2021 all contributors L<mailto:meta@public-inbox.org>