diff --git a/backend/mail.py b/backend/mail.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8ecd52b4f00555c4eaba8ef93b43630b4755b55
--- /dev/null
+++ b/backend/mail.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+import ssl
+import smtplib
+import imaplib
+from rich.console import Console
+from cryptography import x509
+import tls_utils
+from tls_utils import TLSDetails
+from abc import ABC, abstractmethod
+
+class MailHandler(ABC):
+    def __init__(self, host: str, port: int, context: ssl.SSLContext):
+        self.host = host
+        self.port = port
+        self.context = context
+    
+    def connect(self, verification: bool) -> tuple[bool, int]:
+        connection = self.protocol_init(self.host, self.port)
+        if verification:
+            connection.starttls(**self.protocol_starttls_args())
+        else:
+            connection.starttls()
+        cert = connection.sock.getpeercert()
+        self.protocol_close(connection)
+        return tls_utils.get_validity_days(cert)
+
+    @abstractmethod
+    def protocol_init(self, host, port):
+        raise NotImplementedError()
+    @abstractmethod
+    def protocol_close(self, connection):
+        raise NotImplementedError()
+    @abstractmethod
+    def protocol_starttls_args(self):
+        raise NotImplementedError()
+    
+    @staticmethod
+    def create_handler(protocol: str):
+        if protocol == "smtp":
+            return SMTPHandler
+        elif protocol == "imap":
+            return IMAPHandler
+        else:
+            raise ValueError("Invalid protocol")
+
+class IMAPHandler(MailHandler):
+    def protocol_init(self, host, port):
+        return imaplib.IMAP4(host, port)
+    def protocol_close(self, connection):
+        connection.logout()
+    def protocol_starttls_args(self):
+        return {"ssl_context": self.context}
+
+class SMTPHandler(MailHandler):
+    def protocol_init(self, host, port):
+        return smtplib.SMTP(host, port)
+    def protocol_close(self, connection):
+        connection.quit()
+    def protocol_starttls_args(self):
+        return {"context": self.context}
+
+class MailVerificator:
+    def __init__(self, context: ssl.SSLContext):
+        self.context = context
+
+    def connect(self, domain: str, port: int, protocol: str) -> TLSDetails:
+        mail = MailHandler.create_handler(protocol)(domain, port, self.context)
+        try:
+            expiry = mail.connect(True)[1]
+            return TLSDetails(domain_name=domain, expires_in_days=expiry)
+        except ssl.SSLCertVerificationError as e:
+            if (e.verify_code == 10):
+                expiry = mail.connect(False)[1]
+                return TLSDetails(domain_name=domain, expires_in_days=expiry)
+            else:
+                error = "failed verification:", e.verify_message + "."
+                return TLSDetails(domain_name=domain, error_message=error)
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