Is port 25 (SMTP) dangerous?

Port 25 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 25 be open on my firewall?

Port 25 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 25 use?

Port 25 (SMTP) uses the TCP transport protocol and falls under the Email category.

:25 (TCP)

SMTP

Medium Risiko

TCP — Email

Ikhtisar Port

Nomor Port 25

Nama Layanan SMTP

Protokol Transport TCP

Kategori Email

Risiko Keamanan Medium

Rentang Port Well-Known (0-1023)

Apa itu Port 25?

Simple Mail Transfer Protocol. The standard protocol for sending email between mail servers. Often targeted by spammers and requires proper authentication configuration.

TCP Email Umum Digunakan

Pertimbangan Keamanan

Port 25 (SMTP) diklasifikasikan sebagai risiko sedang. Meskipun layanan ini umumnya diekspos, pertimbangkan untuk menggunakan alternatif terenkripsi jika tersedia.

Rekomendasi: Jaga layanan tetap diperbarui. Pantau log untuk aktivitas yang tidak biasa.

Protokol Terkait

Pelajari lebih lanjut tentang protokol SMTP →

Port Terkait — Email

24 Private Mail System 26 RSFTP 50 RE-MAIL-CK 58 XNS-MAIL 109 POP2 110 POP3 143 IMAP 158 PCMail Server

Istilah Terkait

ARP FTP HTTP ICMP IMAP NTP