Port 993

Q: What is port 993?

Encrypted IMAP email access over TLS (IMAPS) IMAPS on port 993 is the TLS-encrypted version of IMAP (port 143). TLS is established immediately upon connection, protecting credentials and email content in transit. It is the recommended option for email access in any mail client. Virtually all modern email providers — including Gmail, Outlook, and Yahoo — support IMAPS.

IMAPS

Encrypted IMAP email access over TLS (IMAPS)

Port

993

Protocol

TCP

Service

IMAPS

Security

Safe

Full name: IMAP over SSL/TLS

What is port 993?

IMAPS on port 993 is the TLS-encrypted version of IMAP (port 143). TLS is established immediately upon connection, protecting credentials and email content in transit. It is the recommended option for email access in any mail client. Virtually all modern email providers — including Gmail, Outlook, and Yahoo — support IMAPS.

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