diff --git a/src/utils/unique_email_enforcement/__tests__/index.test.ts b/src/utils/unique_email_enforcement/__tests__/index.test.ts
index 41d47541..69915462 100644
--- a/src/utils/unique_email_enforcement/__tests__/index.test.ts
+++ b/src/utils/unique_email_enforcement/__tests__/index.test.ts
@@ -39,8 +39,7 @@ describe("isEmailAlreadyTaken", () => {
     ({ entries, expected }) => {
       const result = isEmailAlreadyTaken(mocks.email)({
         profileEmails: {
-          list: generateProfileEmails(entries),
-          get: jest.fn()
+          list: generateProfileEmails(entries)
         }
       });
       expect(result).resolves.toBe(expected);
diff --git a/src/utils/unique_email_enforcement/__tests__/storage.test.ts b/src/utils/unique_email_enforcement/__tests__/storage.test.ts
index dc472db3..768bebd0 100644
--- a/src/utils/unique_email_enforcement/__tests__/storage.test.ts
+++ b/src/utils/unique_email_enforcement/__tests__/storage.test.ts
@@ -69,27 +69,6 @@ const tableClient = new MockedTableClient(
 );
 
 describe("DataTableProfileEmailsRepository", () => {
-  describe("get", () => {
-    it.each(["citizen@email.test.pagopa.it", "CITIZEN@EMAIL.TEST.PAGOPA.IT"])(
-      "normalizes input e-mail addresses",
-      async email => {
-        const repo = new DataTableProfileEmailsRepository(tableClient);
-        const profileEmail = ProfileEmail.decode({
-          email,
-          fiscalCode: "RLDBSV36A78Y792X"
-        });
-        if (E.isRight(profileEmail)) {
-          await repo.get(profileEmail.right);
-          expect(tableClient.getEntity).toHaveBeenCalledWith(
-            "citizen@email.test.pagopa.it",
-            "RLDBSV36A78Y792X"
-          );
-        }
-        expect.hasAssertions();
-      }
-    );
-  });
-
   describe("list", () => {
     it("normalizes input e-mail address", async () => {
       const repo = new DataTableProfileEmailsRepository(tableClient);
diff --git a/src/utils/unique_email_enforcement/index.ts b/src/utils/unique_email_enforcement/index.ts
index 8ac8da22..5bdcfa6b 100644
--- a/src/utils/unique_email_enforcement/index.ts
+++ b/src/utils/unique_email_enforcement/index.ts
@@ -10,7 +10,6 @@ export const ProfileEmail = t.type({
 export type ProfileEmail = t.TypeOf<typeof ProfileEmail>;
 
 export interface IProfileEmailReader {
-  readonly get: (p: ProfileEmail) => Promise<ProfileEmail>;
   readonly list: (filter: EmailString) => AsyncIterableIterator<ProfileEmail>;
 }
 
@@ -19,6 +18,27 @@ export interface IProfileEmailWriter {
   readonly insert: (p: ProfileEmail) => Promise<void>;
 }
 
+type ProfileEmailWriterErrorCause =
+  | "ENTITY_NOT_FOUND"
+  | "DUPLICATE_ENTITY"
+  | "STORAGE_ERROR";
+
+/* eslint-disable functional/prefer-readonly-type */
+export class ProfileEmailWriterError extends Error {
+  public name = "ProfileEmailWriterError";
+  public cause: ProfileEmailWriterErrorCause;
+
+  constructor(message: string, cause: ProfileEmailWriterErrorCause) {
+    super(message);
+    this.cause = cause;
+  }
+
+  public static is(u: unknown): u is ProfileEmailWriterError {
+    return u instanceof Error && u.name === "ProfileEmailWriterError";
+  }
+}
+/* eslint-enable functional/prefer-readonly-type */
+
 // Checks if the given e-mail is already taken
 // profileEmails returns all the ProfileEmail records that shares
 // the same e-mail. If count(records) >= 1 then the e-mail is already taken.
diff --git a/src/utils/unique_email_enforcement/storage.ts b/src/utils/unique_email_enforcement/storage.ts
index 021fa76d..7ec921be 100644
--- a/src/utils/unique_email_enforcement/storage.ts
+++ b/src/utils/unique_email_enforcement/storage.ts
@@ -2,13 +2,14 @@ import * as E from "fp-ts/lib/Either";
 import * as t from "io-ts";
 import { flow } from "fp-ts/lib/function";
 
-import { TableClient, odata } from "@azure/data-tables";
+import { TableClient, odata, RestError } from "@azure/data-tables";
 import { EmailString } from "@pagopa/ts-commons/lib/strings";
 
 import {
   ProfileEmail,
   IProfileEmailReader,
-  IProfileEmailWriter
+  IProfileEmailWriter,
+  ProfileEmailWriterError
 } from "./index";
 
 const TableEntity = t.type({
@@ -33,30 +34,13 @@ const ProfileEmailToTableEntity = new t.Type<ProfileEmail, TableEntity>(
   })
 );
 
+const isRestError = (u: unknown): u is RestError =>
+  u instanceof Error && u.name === "RestError";
+
 export class DataTableProfileEmailsRepository
   implements IProfileEmailReader, IProfileEmailWriter {
   constructor(private readonly tableClient: TableClient) {}
 
-  public async get(p: ProfileEmail): Promise<ProfileEmail> {
-    try {
-      const entity = await this.tableClient.getEntity(
-        p.email.toLowerCase(),
-        p.fiscalCode
-      );
-      const profileEmail = ProfileEmailToTableEntity.decode(entity);
-      if (E.isLeft(profileEmail)) {
-        throw new Error(`can't parse a profile email from the given entity`, {
-          cause: "parsing"
-        });
-      }
-      return profileEmail.right;
-    } catch {
-      throw new Error(
-        `unable to get a profile entity from ${this.tableClient.tableName} table`
-      );
-    }
-  }
-
   // Generates an AsyncIterable<ProfileEmail>
   public async *list(filter: EmailString): AsyncIterableIterator<ProfileEmail> {
     const queryOptions = {
@@ -89,9 +73,12 @@ export class DataTableProfileEmailsRepository
     try {
       const entity = ProfileEmailToTableEntity.encode(p);
       await this.tableClient.createEntity(entity);
-    } catch {
-      throw new Error(
-        `unable to insert a new profile entity into ${this.tableClient.tableName} table`
+    } catch (e) {
+      throw new ProfileEmailWriterError(
+        `unable to insert a new profile entity into ${this.tableClient.tableName} table`,
+        isRestError(e) && e.statusCode === 409
+          ? "DUPLICATE_ENTITY"
+          : "STORAGE_ERROR"
       );
     }
   }
@@ -100,9 +87,14 @@ export class DataTableProfileEmailsRepository
     try {
       const entity = ProfileEmailToTableEntity.encode(p);
       await this.tableClient.deleteEntity(entity.partitionKey, entity.rowKey);
-    } catch {
-      throw new Error(
-        `unable to delete the specified entity from ${this.tableClient.tableName} table`
+    } catch (e) {
+      throw new ProfileEmailWriterError(
+        `unable to delete the specified entity from ${this.tableClient.tableName} table`,
+        isRestError(e) &&
+        e.statusCode === 404 &&
+        e.message.includes(`"ResourceNotFound"`)
+          ? "ENTITY_NOT_FOUND"
+          : "STORAGE_ERROR"
       );
     }
   }