diff --git a/xmtp_api_grpc/src/replication_client.rs b/xmtp_api_grpc/src/replication_client.rs
index d7ae88e2c..97f7fa5c5 100644
--- a/xmtp_api_grpc/src/replication_client.rs
+++ b/xmtp_api_grpc/src/replication_client.rs
@@ -362,14 +362,8 @@ impl XmtpIdentityClient for ClientV4 {
         &self,
         request: PublishIdentityUpdateRequest,
     ) -> Result<PublishIdentityUpdateResponse, Error> {
-        let client = &mut self.payer_client.clone();
-        let res = client
-            .publish_client_envelopes(PublishClientEnvelopesRequest::try_from(request)?)
-            .await;
-        match res {
-            Ok(_) => Ok(PublishIdentityUpdateResponse {}),
-            Err(e) => Err(Error::new(ErrorKind::MlsError).with(e)),
-        }
+        self.publish_envelopes_to_payer(vec![request]).await?;
+        Ok(PublishIdentityUpdateResponse {})
     }
 
     #[tracing::instrument(level = "trace", skip_all)]
@@ -482,20 +476,30 @@ impl ClientV4 {
     }
 
     #[tracing::instrument(level = "trace", skip_all)]
-    async fn publish_envelopes_to_payer<
-        T: TryInto<PublishClientEnvelopesRequest, Error = Error>,
-    >(
+    async fn publish_envelopes_to_payer<T>(
         &self,
-        items: impl IntoIterator<Item = T>,
-    ) -> Result<(), Error> {
+        messages: impl IntoIterator<Item = T>,
+    ) -> Result<(), Error>
+    where
+        T: TryInto<ClientEnvelope>,
+        <T as TryInto<ClientEnvelope>>::Error: std::error::Error + Send + Sync + 'static,
+    {
         let client = &mut self.payer_client.clone();
-        for item in items {
-            let request = item.try_into()?;
-            let res = client.publish_client_envelopes(request).await;
-            if let Err(e) = res {
-                return Err(Error::new(ErrorKind::MlsError).with(e));
-            }
-        }
+
+        let envelopes: Vec<ClientEnvelope> = messages
+            .into_iter()
+            .map(|message| {
+                message
+                    .try_into()
+                    .map_err(|e| Error::new(ErrorKind::MlsError).with(e))
+            })
+            .collect::<Result<_, _>>()?;
+
+        client
+            .publish_client_envelopes(PublishClientEnvelopesRequest { envelopes })
+            .await
+            .map_err(|e| Error::new(ErrorKind::MlsError).with(e))?;
+
         Ok(())
     }
 }
diff --git a/xmtp_proto/src/convert.rs b/xmtp_proto/src/convert.rs
index fe6f2a1e8..7e265f27c 100644
--- a/xmtp_proto/src/convert.rs
+++ b/xmtp_proto/src/convert.rs
@@ -6,7 +6,6 @@ use crate::xmtp::mls::api::v1::{
 };
 use crate::xmtp::xmtpv4::envelopes::client_envelope::Payload;
 use crate::xmtp::xmtpv4::envelopes::{AuthenticatedData, ClientEnvelope};
-use crate::xmtp::xmtpv4::payer_api::PublishClientEnvelopesRequest;
 
 use crate::v4_utils::{
     build_identity_topic_from_hex_encoded, build_welcome_message_topic, get_group_message_topic,
@@ -34,18 +33,16 @@ mod inbox_id {
     }
 }
 
-impl TryFrom<UploadKeyPackageRequest> for PublishClientEnvelopesRequest {
+impl TryFrom<UploadKeyPackageRequest> for ClientEnvelope {
     type Error = Error;
 
     fn try_from(req: UploadKeyPackageRequest) -> Result<Self, Error> {
         if let Some(key_package) = req.key_package.as_ref() {
-            Ok(PublishClientEnvelopesRequest {
-                envelopes: vec![ClientEnvelope {
-                    aad: Some(AuthenticatedData::with_topic(get_key_package_topic(
-                        key_package,
-                    )?)),
-                    payload: Some(Payload::UploadKeyPackage(req)),
-                }],
+            Ok(ClientEnvelope {
+                aad: Some(AuthenticatedData::with_topic(get_key_package_topic(
+                    key_package,
+                )?)),
+                payload: Some(Payload::UploadKeyPackage(req)),
             })
         } else {
             Err(Error::new(InternalError(MissingPayloadError)))
@@ -53,18 +50,16 @@ impl TryFrom<UploadKeyPackageRequest> for PublishClientEnvelopesRequest {
     }
 }
 
-impl TryFrom<PublishIdentityUpdateRequest> for PublishClientEnvelopesRequest {
+impl TryFrom<PublishIdentityUpdateRequest> for ClientEnvelope {
     type Error = Error;
 
     fn try_from(req: PublishIdentityUpdateRequest) -> Result<Self, Error> {
         if let Some(identity_update) = req.identity_update {
-            Ok(PublishClientEnvelopesRequest {
-                envelopes: vec![ClientEnvelope {
-                    aad: Some(AuthenticatedData::with_topic(
-                        build_identity_topic_from_hex_encoded(&identity_update.inbox_id)?,
-                    )),
-                    payload: Some(Payload::IdentityUpdate(identity_update)),
-                }],
+            Ok(ClientEnvelope {
+                aad: Some(AuthenticatedData::with_topic(
+                    build_identity_topic_from_hex_encoded(&identity_update.inbox_id)?,
+                )),
+                payload: Some(Payload::IdentityUpdate(identity_update)),
             })
         } else {
             Err(Error::new(InternalError(MissingPayloadError)))
@@ -72,18 +67,16 @@ impl TryFrom<PublishIdentityUpdateRequest> for PublishClientEnvelopesRequest {
     }
 }
 
-impl TryFrom<GroupMessageInput> for PublishClientEnvelopesRequest {
+impl TryFrom<GroupMessageInput> for ClientEnvelope {
     type Error = crate::Error;
 
     fn try_from(req: GroupMessageInput) -> Result<Self, Error> {
         if let Some(GroupMessageInputVersion::V1(ref version)) = req.version {
-            Ok(PublishClientEnvelopesRequest {
-                envelopes: vec![ClientEnvelope {
-                    aad: Some(AuthenticatedData::with_topic(get_group_message_topic(
-                        version.data.clone(),
-                    )?)),
-                    payload: Some(Payload::GroupMessage(req)),
-                }],
+            Ok(ClientEnvelope {
+                aad: Some(AuthenticatedData::with_topic(get_group_message_topic(
+                    version.data.clone(),
+                )?)),
+                payload: Some(Payload::GroupMessage(req)),
             })
         } else {
             Err(Error::new(InternalError(MissingPayloadError)))
@@ -91,18 +84,16 @@ impl TryFrom<GroupMessageInput> for PublishClientEnvelopesRequest {
     }
 }
 
-impl TryFrom<WelcomeMessageInput> for PublishClientEnvelopesRequest {
+impl TryFrom<WelcomeMessageInput> for ClientEnvelope {
     type Error = crate::Error;
 
     fn try_from(req: WelcomeMessageInput) -> Result<Self, Self::Error> {
         if let Some(WelcomeMessageVersion::V1(ref version)) = req.version {
-            Ok(PublishClientEnvelopesRequest {
-                envelopes: vec![ClientEnvelope {
-                    aad: Some(AuthenticatedData::with_topic(build_welcome_message_topic(
-                        version.installation_key.as_slice(),
-                    ))),
-                    payload: Some(Payload::WelcomeMessage(req)),
-                }],
+            Ok(ClientEnvelope {
+                aad: Some(AuthenticatedData::with_topic(build_welcome_message_topic(
+                    version.installation_key.as_slice(),
+                ))),
+                payload: Some(Payload::WelcomeMessage(req)),
             })
         } else {
             Err(Error::new(InternalError(MissingPayloadError)))