diff --git a/app/notification.go b/app/notification.go
index 375fcac4dd..1dc1fdbd95 100644
--- a/app/notification.go
+++ b/app/notification.go
@@ -4,7 +4,6 @@
 package app
 
 import (
-	"fmt"
 	"sort"
 	"strings"
 	"unicode"
@@ -175,14 +174,14 @@ func (a *App) SendNotifications(post *model.Post, team *model.Team, channel *mod
 			// Remove the user as recipient when the user has muted the channel.
 			if channelMuted, ok := channelMemberNotifyPropsMap[id][model.MARK_UNREAD_NOTIFY_PROP]; ok {
 				if channelMuted == model.CHANNEL_MARK_UNREAD_MENTION {
-					mlog.Debug(fmt.Sprintf("Channel muted for user_id %v, channel_mute %v", id, channelMuted))
+					mlog.Debug("Channel muted for user", mlog.String("user_id", id), mlog.String("channel_mute", channelMuted))
 					userAllowsEmails = false
 				}
 			}
 
 			//If email verification is required and user email is not verified don't send email.
 			if *a.Config().EmailSettings.RequireEmailVerification && !profileMap[id].EmailVerified {
-				mlog.Error(fmt.Sprintf("Skipped sending notification email to %v, address not verified. [details: user_id=%v]", profileMap[id].Email, id))
+				mlog.Error("Skipped sending notification email, address not verified.", mlog.String("user_email", profileMap[id].Email), mlog.String("user_id", id))
 				continue
 			}
 
@@ -250,7 +249,12 @@ func (a *App) SendNotifications(post *model.Post, team *model.Team, channel *mod
 	// MUST be completed before push notifications send
 	for _, umc := range updateMentionChans {
 		if err := <-umc; err != nil {
-			mlog.Warn(fmt.Sprintf("Failed to update mention count, post_id=%v channel_id=%v err=%v", post.Id, post.ChannelId, result.Err), mlog.String("post_id", post.Id))
+			mlog.Warn(
+				"Failed to update mention count",
+				mlog.String("post_id", post.Id),
+				mlog.String("channel_id", post.ChannelId),
+				mlog.Err(err),
+			)
 		}
 	}
 
@@ -352,7 +356,7 @@ func (a *App) SendNotifications(post *model.Post, team *model.Team, channel *mod
 
 		var infos []*model.FileInfo
 		if result := <-fchan; result.Err != nil {
-			mlog.Warn(fmt.Sprint("Unable to get fileInfo for push notifications.", post.Id, result.Err), mlog.String("post_id", post.Id))
+			mlog.Warn("Unable to get fileInfo for push notifications.", mlog.String("post_id", post.Id), mlog.Err(result.Err))
 		} else {
 			infos = result.Data.([]*model.FileInfo)
 		}