What is Port 2525 and why does Mailgun use it?
What is Port 2525 and why does Mailgun use it?
Instead, Mailgun provides it as an alternate port, which mirrors port 587, in the event the above ports are blocked. Because 2525 is a non-traditional high port number, it is typically allowed on consumer ISPs and Cloud Hosting providers, like Google Compute Engine.
What is SMTPS port 465 used for?
Instead, the Internet Assigned Numbers Authority (IANA), who maintains much of the core internet infrastructure, registered port 465 for SMTPS. The purpose was to establish a port for SMTP to operate using Secure Sockets Layer (SSL). SSL is commonly used for encrypting communications over the internet.
What are the 5058 and 5059 SIP protocols?
5058 Locus Discovery. 5059 SIP Directory Services. 5060 SCTP, TCP, UDP SIP, Session Initiation Protocol. 5061 DTLS, Datagram Transport Layer Security.
What ports does Mailgun support for SMTP?
All Mailgun customers should consider using port 587 as their default SMTP port unless you’re explicitly blocked by your upstream network or hosting provider. Port 2525: This port is not endorsed by the IETF nor IANA. Instead, Mailgun provides it as an alternate port, which mirrors port 587, in the event the above ports are blocked.
How are serviceservice names and port numbers assigned?
Service names are assigned on a first-come, first-served process, as documented in [ RFC6335 ]. Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535); the difference uses of these ranges is described in [ RFC6335 ].
What is SMTP port 25 used for?
SMTP port 25 continues to be used primarily for SMTP relaying. SMTP relaying is the transmittal of email from email server to email server. In most cases, modern SMTP email clients (Microsoft Outlook, Mail, Thunderbird, etc.) shouldn’t use this port.
What is the default mail submission port for email?
This is the default mail submission port. When an email client or outgoing server is submitting an email to be routed by a proper mail server, it should always use SMTP port 587 as the default port. This port, coupled with TLS encryption, will ensure that email is submitted securely and following the guidelines set out by the IETF.
