587

TCP

SMTP-SUBMISSION

SMTP Message Submission

🔒 Security: SecureStatus: Active📧 Category: Mail

📋 Basic Information

Port Number
587
Protocol
TCP
Service
SMTP-SUBMISSION
Popularity
🔥 High
Description
Mail submission port with STARTTLS encryption
Tags
mailemailsmtpsubmission

🔒 Security Information

🔒

Security Notes

Use with TLS encryption (STARTTLS)

🔗 Related Ports

25🔥

SMTP

Simple Mail Transfer Protocol

TCP

Standard protocol for sending email between mail servers

⚠️ Security: Depends📧 Category: Mail
465🔥

SMTPS

SMTP over SSL

TCP

SMTP over SSL for secure email transmission (legacy method)

🔒 Security: Secure📧 Category: Mail

📚 References