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IT Atlas

Protocol

POP3 / POP3S

Mail download

Port 110 / 995TCPEncrypted: Optional

Record

Ports
110, 995
Transport
TCP
Encryption
Optional
Typical use
Legacy clients and devices

Security considerations

Disable unless a documented dependency exists

Where this protocol is explained

Exchange Online

Microsoft's cloud email service, including transport rules, connectors, mailbox permissions and hybrid coexistence with on premises Exchange.

Topics that use this protocol

Exchange Online

Microsoft's cloud email service, including transport rules, connectors, mailbox permissions and hybrid coexistence with on premises Exchange.

Other protocols over TCP

DNS over TLSFTPFTPSGlobal CatalogHTTPIMAP / IMAPSKubernetes APILDAPSMicrosoft SQL ServerMySQL / MariaDB

In the knowledge graph

Open the interactive map centred on this entity to see everything it connects to and travel outwards from there.

Explore POP3 / POP3S in the knowledge graph