diff -udprP mutt-1.10.0.orig/hdrline.c mutt-1.10.0/hdrline.c
--- mutt-1.10.0.orig/hdrline.c	2018-05-15 00:51:53.000000000 +0300
+++ mutt-1.10.0/hdrline.c	2018-06-16 17:17:07.682610173 +0300
@@ -228,6 +228,7 @@ static char *apply_subject_mods (ENVELOP
  * %f = entire from line
  * %F = like %n, unless from self
  * %i = message-id
+ * %I = initials of author
  * %l = number of lines in the message
  * %L = like %F, except `lists' are displayed first
  * %m = number of messages in the mailbox
@@ -478,6 +479,31 @@ hdr_format_str (char *dest,
       mutt_format_s (dest, destlen, prefix, hdr->env->message_id ? hdr->env->message_id : "<no.id>");
       break;
 
+    case 'I':
+      {
+	int iflag = FALSE;
+	int j = 0;
+
+	for (i = 0; hdr->env->from && hdr->env->from->personal &&
+		    hdr->env->from->personal[i] && j < SHORT_STRING - 1; i++)
+	{
+	  if (isalpha ((int)hdr->env->from->personal[i]))
+	  {
+	    if (!iflag)
+	    {
+	      buf2[j++] = hdr->env->from->personal[i];
+	      iflag = TRUE;
+	    }
+	  }
+	  else
+	    iflag = FALSE;
+	}
+
+	buf2[j] = '\0';
+      }
+      mutt_format_s (dest, destlen, prefix, buf2);
+      break;
+
     case 'l':
       if (!optional)
       {
diff -udprP mutt-1.10.0.orig/PATCHES mutt-1.10.0/PATCHES
--- mutt-1.10.0.orig/PATCHES	2017-12-03 05:10:17.000000000 +0200
+++ mutt-1.10.0/PATCHES	2018-06-16 17:17:07.683610157 +0300
@@ -0,0 +1 @@
+vvv.initials