2024 465 closure Port 465 was initially introduced in the late 1990s as a secure alternative to port 25 for SMTP communication. However, it was never officially standardized by the Internet Engineering Task Force (IETF) and was eventually superseded by the STARTTLS command, which allows for the upgrade of an insecure connection to a secure one on port 587. Google's decision to deprecate port 465 was based on several factors, including the lack of standardization and the potential security risks associated with using the same port for both secure and insecure connections. By moving to port 587, email service providers and developers can ensure that their email submissions are secure and meet the latest industry standards. The closure of port 465 has several implications for email service providers and developers. Firstly, any systems that still rely on port 465 for email submission will need to be updated to use port 587 instead. This may involve modifying email client configurations, updating firewall rules, and reconfiguring email servers. Secondly, developers of email software and services will need to ensure that their products support port 587 and the STARTTLS command. This may involve updating existing code or implementing new features to support the recommended method of email submission. Thirdly, email service providers and developers will need to ensure that their systems are configured to use the latest security protocols and ciphers. This includes using Transport Layer Security (TLS) version 1.2 or higher and strong cipher suites to encrypt email traffic. To mitigate the impact of the port 465 closure, Google provided a grace period during which email submissions using port 465 were still accepted. However, this grace period ended on January 30, 2023, and any systems that still rely on port 465 for email submission will no longer function as expected.
To mitigate the impact of the port 465 closure, Google provided a grace period during which email submissions using port 465 were still accepted. However, this grace period ended on January 30, 2023, and any systems that still rely on port 465 for email submission will no longer function as expected. In summary, the closure of port 465 for email submission by Google is a significant event that has several implications for email service providers and developers. By moving to port 587 and the STARTTLS command, email submissions can be made more secure and meet the latest industry standards. However, this transition may require significant effort and resources, particularly for organizations that still rely on legacy systems and software. The topic of '465 closure' refers to the deprecation and shutdown of the SSL/TLS port 465 for email submission by Google, which occurred on January 30, 2023. This change was announced in 2018, giving email service providers and developers several years to transition to the recommended and more secure method of email submission using the Simple Mail Transfer Protocol (SMTP) submission port 587. Port 465 was initially introduced in the late 1990s as a secure alternative to port 25 for SMTP communication. However, it was never officially standardized by the Internet Engineering Task Force (IETF) and was eventually superseded by the STARTTLS command, which allows for the upgrade of an insecure connection to a secure one on port 587. Google's decision to deprecate port 465 was based on several factors, including the lack of standardization and the potential security risks associated with using the same port for both secure and insecure connections. By moving to port 587, email service providers and developers can ensure that their email submissions are secure and meet the latest industry standards. The closure of port 465 has several implications for email service providers and developers. Firstly, any systems that still rely on port 465 for email submission will need to be updated to use port 587 instead. This may involve modifying email client configurations, updating firewall rules, and reconfiguring email servers. Secondly, developers of email software and services will need to ensure that their products support port 587 and the STARTTLS command. This may involve updating existing code or implementing new features to support the recommended method of email submission. Thirdly, email service providers and developers will need to ensure that their systems are configured to use the latest security protocols and ciphers. This includes using Transport Layer Security (TLS) version 1.2 or higher and strong cipher suites to encrypt email traffic. To mitigate the impact of the port 465 closure, Google provided a grace period during which email submissions using port 465 were still accepted. However, this grace period ended on January 30, 2023, and any systems that still rely on port 465 for email submission will no longer function as expected. In summary, the closure of port 465 for email submission by Google is a significant event that has several implications for email service providers and developers. By moving to port 587 and the STARTTLS command, email submissions can be made more secure and meet the latest industry standards. However, this transition may require significant effort and resources, particularly for organizations that still rely on legacy systems and software.
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