diff --git a/app/controllers/ForumPost.scala b/app/controllers/ForumPost.scala
index 2d2e364ff2f79..791e2138690d7 100644
--- a/app/controllers/ForumPost.scala
+++ b/app/controllers/ForumPost.scala
@@ -5,7 +5,7 @@ import views.*
 import lila.app.{ given, * }
 import lila.common.IpAddress
 import lila.msg.MsgPreset
-import lila.relation.{ Block }
+import lila.i18n.{ I18nKeys as trans }
 
 final class ForumPost(env: Env) extends LilaController(env) with ForumController:
 
@@ -40,14 +40,9 @@ final class ForumPost(env: Env) extends LilaController(env) with ForumController
         else
           for
             canModCateg <- access.isGrantedMod(categ.slug)
-            topicUserId = topic.userId.getOrElse(UserId(""))
-            relation <- ctx.userId.so(
-              env.relation.api.fetchRelation(topicUserId: UserId, _)
-            )
-            isUblog      = topic.ublogId.isDefined
-            replyBlocked = relation.exists(_ == Block) && !canModCateg && isUblog
+            replyBlocked <- access.isReplyBlockedOnUBlog(topic, canModCateg)
             res <-
-              if replyBlocked then Future.successful(BadRequest("You are blocked by the blog author"))
+              if replyBlocked then fuccess(BadRequest(trans.ublog.youBlockedByBlogAuthor()))
               else
                 categ.team.so(env.team.api.isLeader(_, me)) flatMap { inOwnTeam =>
                   forms
diff --git a/app/controllers/ForumTopic.scala b/app/controllers/ForumTopic.scala
index 7b4689f71db4d..9185fa341224f 100644
--- a/app/controllers/ForumTopic.scala
+++ b/app/controllers/ForumTopic.scala
@@ -6,7 +6,6 @@ import lila.app.{ given, * }
 import lila.common.IpAddress
 import lila.forum.ForumCateg.diagnosticId
 import lila.Lila.{ UserId }
-import lila.relation.{ Block }
 
 final class ForumTopic(env: Env) extends LilaController(env) with ForumController:
 
@@ -59,14 +58,9 @@ final class ForumTopic(env: Env) extends LilaController(env) with ForumControlle
           for
             unsub   <- ctx.me soUse env.timeline.status(s"forum:${topic.id}")
             canRead <- access.isGrantedRead(categ.slug)
-            topicUserId = topic.userId.getOrElse(UserId(""))
-            relation <- ctx.userId.so(
-              env.relation.api.fetchRelation(topicUserId: UserId, _)
-            )
             canWrite    <- access.isGrantedWrite(categ.slug, tryingToPostAsMod = true)
             canModCateg <- access.isGrantedMod(categ.slug)
-            isUblog      = topic.ublogId.isDefined
-            replyBlocked = relation.exists(_ == Block) && !canModCateg && isUblog
+            replyBlocked <- access.isReplyBlockedOnUBlog(topic, canModCateg)
             inOwnTeam <- ~(categ.team, ctx.me).mapN(env.team.api.isLeader(_, _))
             form <- ctx.me
               .filter(_ => canWrite && topic.open && !topic.isOld && !replyBlocked)
diff --git a/app/views/forum/topic.scala b/app/views/forum/topic.scala
index 2794a5dab7cda..cb18904833187 100644
--- a/app/views/forum/topic.scala
+++ b/app/views/forum/topic.scala
@@ -137,7 +137,7 @@ object topic:
                     a(href := teamRoutes.show(teamId))(trans.teamNamedX(teamLink(teamId, true)))
               .orElse:
                 if ctx.me.exists(_.isBot) then p("Bots cannot post in the forum.").some
-                else if replyBlocked then p(trans.youBlockedByBlogAuthor()).some
+                else if replyBlocked then p(trans.ublog.youBlockedByBlogAuthor()).some
                 else ctx.isAuth option p(trans.youCannotPostYetPlaySomeGames())
           ,
           div(
diff --git a/modules/api/src/main/ForumAccess.scala b/modules/api/src/main/ForumAccess.scala
index 146bbaff685bc..82cbfc98e361b 100644
--- a/modules/api/src/main/ForumAccess.scala
+++ b/modules/api/src/main/ForumAccess.scala
@@ -4,8 +4,13 @@ import lila.forum.ForumCateg
 import lila.security.{ Granter, Permission }
 import lila.team.Team
 import lila.user.{ User, Me }
+import lila.relation.Block
 
-final class ForumAccess(teamApi: lila.team.TeamApi, teamCached: lila.team.Cached)(using
+final class ForumAccess(
+    teamApi: lila.team.TeamApi,
+    teamCached: lila.team.Cached,
+    relationApi: lila.relation.RelationApi
+)(using
     Executor
 ):
 
@@ -45,3 +50,11 @@ final class ForumAccess(teamApi: lila.team.TeamApi, teamCached: lila.team.Cached
   def isGrantedMod(categId: ForumCategId)(using meOpt: Option[Me]): Fu[Boolean] = meOpt.so: me =>
     if Granter.opt(_.ModerateForum) then fuTrue
     else ForumCateg.toTeamId(categId).so(teamApi.hasPerm(_, me, _.Comm))
+
+  def isReplyBlockedOnUBlog(topic: lila.forum.ForumTopic, canModCateg: Boolean)(using
+      meOpt: Option[Me]
+  ): Fu[Boolean] = meOpt.so: me =>
+    if topic.ublogId.isEmpty then fuFalse
+    else if topic.userId.isEmpty then fuFalse
+    else if canModCateg then fuFalse
+    else relationApi.fetchRelation(topic.userId.get, me).map(_.contains(Block))
diff --git a/modules/i18n/src/main/I18nKeys.scala b/modules/i18n/src/main/I18nKeys.scala
index 79d7c109ee327..6618725e7ff85 100644
--- a/modules/i18n/src/main/I18nKeys.scala
+++ b/modules/i18n/src/main/I18nKeys.scala
@@ -746,7 +746,6 @@ object I18nKeys:
   val `joinTheTeamXToPost` = I18nKey("joinTheTeamXToPost")
   val `teamNamedX` = I18nKey("teamNamedX")
   val `youCannotPostYetPlaySomeGames` = I18nKey("youCannotPostYetPlaySomeGames")
-  val `youBlockedByBlogAuthor` = I18nKey("youBlockedByBlogAuthor")
   val `subscribe` = I18nKey("subscribe")
   val `unsubscribe` = I18nKey("unsubscribe")
   val `mentionedYouInX` = I18nKey("mentionedYouInX")
@@ -2457,6 +2456,7 @@ object I18nKeys:
     val `inappropriateContentAccountClosed` = I18nKey("ublog:inappropriateContentAccountClosed")
     val `blogTips` = I18nKey("ublog:blogTips")
     val `discussThisBlogPostInTheForum` = I18nKey("ublog:discussThisBlogPostInTheForum")
+    val `youBlockedByBlogAuthor` = I18nKey("ublog:youBlockedByBlogAuthor")
     val `publishedNbBlogPosts` = I18nKey("ublog:publishedNbBlogPosts")
     val `nbViews` = I18nKey("ublog:nbViews")
     val `viewAllNbPosts` = I18nKey("ublog:viewAllNbPosts")
diff --git a/translation/source/site.xml b/translation/source/site.xml
index a287474e1d959..68f67e94bf31e 100644
--- a/translation/source/site.xml
+++ b/translation/source/site.xml
@@ -911,7 +911,6 @@
   <string name="joinTheTeamXToPost">Join the %1$s, to post in this forum</string>
   <string name="teamNamedX">%1$s team</string>
   <string name="youCannotPostYetPlaySomeGames">You can't post in the forums yet. Play some games!</string>
-  <string name="youBlockedByBlogAuthor">You are blocked by the blog author.</string>
   <string name="subscribe">Subscribe</string>
   <string name="unsubscribe">Unsubscribe</string>
   <string name="mentionedYouInX">mentioned you in "%1$s".</string>
diff --git a/translation/source/ublog.xml b/translation/source/ublog.xml
index 2d44135ff8c6d..a4dfa225fa0fd 100644
--- a/translation/source/ublog.xml
+++ b/translation/source/ublog.xml
@@ -52,4 +52,5 @@
   <string name="inappropriateContentAccountClosed">Anything inappropriate could get your account closed.</string>
   <string name="blogTips">Our simple tips to write great blog posts</string>
   <string name="discussThisBlogPostInTheForum">Discuss this blog post in the forum</string>
+  <string name="youBlockedByBlogAuthor">You are blocked by the blog author.</string>
 </resources>