diff --git a/include/diaspora.php b/include/diaspora.php
index 762018b170..58a77dca86 100644
--- a/include/diaspora.php
+++ b/include/diaspora.php
@@ -1529,6 +1529,8 @@ class Diaspora {
 
 		$person = self::person_by_handle($msg_author);
 
+		dba::lock('mail');
+
 		$r = q("SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
 			dbesc($msg_guid),
 			intval($importer["uid"])
@@ -1556,6 +1558,8 @@ class Diaspora {
 			dbesc($msg_created_at)
 		);
 
+		dba::unlock();
+
 		q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
 			dbesc(datetime_convert()),
 			intval($conversation["id"])
@@ -1832,6 +1836,12 @@ class Diaspora {
 			return false;
 		}
 
+		$body = diaspora2bb($text);
+
+		$body = self::replace_people_guid($body, $person["url"]);
+
+		dba::lock('mail');
+
 		$r = q("SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
 			dbesc($guid),
 			intval($importer["uid"])
@@ -1841,10 +1851,6 @@ class Diaspora {
 			return false;
 		}
 
-		$body = diaspora2bb($text);
-
-		$body = self::replace_people_guid($body, $person["url"]);
-
 		q("INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
 				VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
 			intval($importer["uid"]),
@@ -1863,6 +1869,8 @@ class Diaspora {
 			dbesc($created_at)
 		);
 
+		dba::unlock();
+
 		q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
 			dbesc(datetime_convert()),
 			intval($conversation["id"])
diff --git a/src/Network/Probe.php b/src/Network/Probe.php
index f0bb17dacd..9b559304d6 100644
--- a/src/Network/Probe.php
+++ b/src/Network/Probe.php
@@ -827,6 +827,12 @@ class Probe {
 			}
 		}
 
+		foreach ($webfinger["aliases"] as $alias) {
+			if (substr($alias, 0, 5) == 'acct:') {
+				$data["addr"] = substr($alias, 5);
+			}
+		}
+
 		if (!isset($data["network"]) || ($hcard_url == "")) {
 			return false;
 		}