diff --git a/ElementX/Sources/Other/MatrixEntityRegex.swift b/ElementX/Sources/Other/MatrixEntityRegex.swift
index 17e7b04ae..3bb6cbe02 100644
--- a/ElementX/Sources/Other/MatrixEntityRegex.swift
+++ b/ElementX/Sources/Other/MatrixEntityRegex.swift
@@ -15,14 +15,12 @@
 //
 
 import Foundation
+import MatrixRustSDK
 
 // https://spec.matrix.org/latest/appendices/#identifier-grammar
 enum MatrixEntityRegex: String {
     case homeserver
     case userId
-    case roomAlias
-    case roomId
-    case eventId
     case allUsers
     
     var rawValue: String {
@@ -31,12 +29,6 @@ enum MatrixEntityRegex: String {
             return "[A-Z0-9]+((\\.|\\-)[A-Z0-9]+){0,}(:[0-9]{2,5})?"
         case .userId:
             return "@[\\x21-\\x39\\x3B-\\x7F]+:" + MatrixEntityRegex.homeserver.rawValue
-        case .roomAlias:
-            return "#[A-Z0-9._%#@=+-]+:" + MatrixEntityRegex.homeserver.rawValue
-        case .roomId:
-            return "![A-Z0-9_\\-\\/]+:" + MatrixEntityRegex.homeserver.rawValue
-        case .eventId:
-            return "\\$[a-z0-9_\\-\\/]+(:[a-z0-9]+\\.[a-z0-9]+)?"
         case .allUsers:
             return PillConstants.atRoom
         }
@@ -45,9 +37,6 @@ enum MatrixEntityRegex: String {
     // swiftlint:disable force_try
     static var homeserverRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.homeserver.rawValue, options: .caseInsensitive)
     static var userIdentifierRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.userId.rawValue, options: .caseInsensitive)
-    static var roomAliasRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.roomAlias.rawValue, options: .caseInsensitive)
-    static var roomIdentifierRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.roomId.rawValue, options: .caseInsensitive)
-    static var eventIdentifierRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.eventId.rawValue, options: .caseInsensitive)
     static var allUsersRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.allUsers.rawValue)
     static var linkRegex = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
     // swiftlint:enable force_try
@@ -68,30 +57,6 @@ enum MatrixEntityRegex: String {
         return match.range.length == identifier.count
     }
     
-    static func isMatrixRoomAlias(_ alias: String) -> Bool {
-        guard let match = roomAliasRegex.firstMatch(in: alias) else {
-            return false
-        }
-        
-        return match.range.length == alias.count
-    }
-    
-    static func isMatrixRoomIdentifier(_ identifier: String) -> Bool {
-        guard let match = roomIdentifierRegex.firstMatch(in: identifier) else {
-            return false
-        }
-        
-        return match.range.length == identifier.count
-    }
-        
-    static func isMatrixEventIdentifier(_ identifier: String) -> Bool {
-        guard let match = eventIdentifierRegex.firstMatch(in: identifier) else {
-            return false
-        }
-        
-        return match.range.length == identifier.count
-    }
-    
     static func containsMatrixAllUsers(_ string: String) -> Bool {
         guard allUsersRegex.firstMatch(in: string) != nil else {
             return false
diff --git a/UnitTests/Sources/MatrixEntityRegexTests.swift b/UnitTests/Sources/MatrixEntityRegexTests.swift
index b7d32413a..7435228b2 100644
--- a/UnitTests/Sources/MatrixEntityRegexTests.swift
+++ b/UnitTests/Sources/MatrixEntityRegexTests.swift
@@ -32,39 +32,6 @@ class MatrixEntityRegexTests: XCTestCase {
         XCTAssertFalse(MatrixEntityRegex.isMatrixUserIdentifier("username:example.com"))
         XCTAssertFalse(MatrixEntityRegex.isMatrixUserIdentifier("@username.example.com"))
     }
-
-    func testRoomAlias() {
-        XCTAssertTrue(MatrixEntityRegex.isMatrixRoomAlias("#element-ios:matrix.org"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixRoomAlias("element-ios:matrix.org"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixRoomAlias("#element-ios.matrix.org"))
-    }
-
-    func testRoomId() {
-        XCTAssertTrue(MatrixEntityRegex.isMatrixRoomIdentifier("!pMBteVpcoJRdCJxDmn:matrix.org"))
-        XCTAssertTrue(MatrixEntityRegex.isMatrixRoomIdentifier("!pMBte-Vpco-JRdCJxDmn:matrix.org"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixRoomIdentifier("pMBteVpcoJRdCJxDmn:matrix.org"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixRoomIdentifier("!pMBteVpcoJRdCJxDmn.matrix.org"))
-    }
-
-    func testEventId() {
-        // room version 1
-        XCTAssertTrue(MatrixEntityRegex.isMatrixEventIdentifier("$h29iv0s8:example.com"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$h29iv0s8:example."))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$h29iv0s8:"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$h29iv0s8?"))
-
-        // room version 3
-        XCTAssertTrue(MatrixEntityRegex.isMatrixEventIdentifier("$acR1l0raoZnm60CBwAVgqbZqoO/mYU81xysh1u7XcJk"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$acR1l0raoZnm60CBwAVgqbZqoO/mYU81xysh1u7XcJk."))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$acR1l0raoZnm60CBwAVgqbZqoO/mYU81xysh1u7XcJk:"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$acR1l0raoZnm60CBwAVgqbZqoO/mYU81xysh1u7XcJk?"))
-
-        // room version 4
-        XCTAssertTrue(MatrixEntityRegex.isMatrixEventIdentifier("$Rqnc-F-dvnEYJTyHq_iKxU2bZ1CI92-kuZq3a5lr5Zg"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$Rqnc-F-dvnEYJTyHq_iKxU2bZ1CI92-kuZq3a5lr5Zg."))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$Rqnc-F-dvnEYJTyHq_iKxU2bZ1CI92-kuZq3a5lr5Zg:"))
-        XCTAssertFalse(MatrixEntityRegex.isMatrixEventIdentifier("$Rqnc-F-dvnEYJTyHq_iKxU2bZ1CI92-kuZq3a5lr5Zg?"))
-    }
     
     func testAllUsers() {
         XCTAssertTrue(MatrixEntityRegex.containsMatrixAllUsers("@room"))