Here are Google's related Email Sender Guidelines: https://support.google.com/mail/answer/81126

Note that these take effect in two weeks.

There are a couple of shortcomings that I think I see:

1. If the clock moves backwards (and an "older" record gets created), it doesn't help.

2. If a duplicate timestamp is created with an id that sorts earlier than one of the other dups (and a user has already synced to the first dup).

In both of those cases, the user won't receive the new record. (Yes, neither is probable, but neither is impossible.)

Nice. That's a good general rule to follow.

That's a good point. I'll add a note to the post.

Psiphon | Software Engineer | https://psiphon.ca | Toronto, Canada | Full-time | REMOTE for now, REMOTE/ONSITE hybrid later

Psiphon Inc. is looking for experienced software developers to join our Toronto team.

= What we do =

We develop and operate Psiphon, an Internet anti-censorship network that helps millions of people in freedom-restricted countries access uncensored Internet every day. We work at the leading edge of circumvention technology, where the latest network protocol and endpoint obfuscation research is rapidly deployed into production around the world.

Our tasks include censorship technology research, server and client software development, and operation of a dynamic, global network of thousands of proxy servers.

We’re a small team looking for skilled and enthusiastic people to join us. We offer great compensation and benefits and flexible work arrangements.

= Tech stack =

Much of our system is open source, check it out at https://github.com/Psiphon-Inc/psiphon/ and https://github.com/Psiphon-Labs/psiphon-tunnel-core

We use Java (Android app), Obj-C and Swift (iOS app), C++ (Windows app), Go (cross-platform core client and server), Python/JavaScript/C/shell script (server-side stack), ElasticSearch/Logstash/Kibana (stats), and more.

= Contact =

[email protected]

Psiphon | Software Engineer | https://psiphon.ca | Toronto, Canada | Full-time | REMOTE for now, REMOTE/ONSITE hybrid later

Psiphon Inc. is looking for experienced software developers to join our Toronto team.

= What we do =

We develop and operate Psiphon, an Internet anti-censorship network that helps millions of people in freedom-restricted countries access uncensored Internet every day. We work at the leading edge of circumvention technology, where the latest network protocol and endpoint obfuscation research is rapidly deployed into production around the world.

Our tasks include censorship technology research, server and client software development, and operation of a dynamic, global network of thousands of proxy servers.

We’re a small team looking for skilled and enthusiastic people to join us. We offer great compensation and benefits and flexible work arrangements.

= Tech stack =

Much of our system is open source, check it out at https://github.com/Psiphon-Inc/psiphon/ and https://github.com/Psiphon-Labs/psiphon-tunnel-core

We use Java (Android app), Obj-C and Swift (iOS app), C++ (Windows app), Go (cross-platform core client and server), Python/JavaScript/C/shell script (server-side stack), ElasticSearch/Logstash/Kibana (stats), and more.

= Contact =

[email protected]

Psiphon | Software Engineer | https://psiphon.ca | Toronto, Canada | Full-time | REMOTE for now, REMOTE/ONSITE hybrid later

Psiphon Inc. is looking for experienced software developers to join our Toronto team.

= What we do =

We develop and operate Psiphon, an Internet anti-censorship network that helps millions of people in freedom-restricted countries access uncensored Internet every day. We work at the leading edge of circumvention technology, where the latest network protocol and endpoint obfuscation research is rapidly deployed into production around the world.

Our tasks include censorship technology research, server and client software development, and operation of a dynamic, global network of thousands of proxy servers.

We’re a small team looking for skilled and enthusiastic people to join us. We offer great compensation and benefits and flexible work arrangements.

= Tech stack =

Much of our system is open source, check it out at https://github.com/Psiphon-Inc/psiphon/ and https://github.com/Psiphon-Labs/psiphon-tunnel-core

We use Java (Android app), Obj-C and Swift (iOS app), C++ (Windows app), Go (cross-platform core client and server), Python/JavaScript/C/shell script (server-side stack), ElasticSearch/Logstash/Kibana (stats), and more.

= Contact =

[email protected]

Psiphon | Software Engineer | https://psiphon.ca | Toronto, Canada | Full-time | REMOTE for now, REMOTE/ONSITE hybrid later

Psiphon Inc. is looking for experienced software developers to join our Toronto team.

= What we do =

We develop and operate Psiphon, an Internet anti-censorship network that helps millions of people in freedom-restricted countries access uncensored Internet every day. We work at the leading edge of circumvention technology, where the latest network protocol and endpoint obfuscation research is rapidly deployed into production around the world.

Our tasks include censorship technology research, server and client software development, and operation of a dynamic, global network of thousands of proxy servers.

We’re a small team looking for skilled and enthusiastic people to join us. We offer great compensation and benefits and flexible work arrangements.

= Tech stack =

Much of our system is open source, check it out at https://github.com/Psiphon-Inc/psiphon/ and https://github.com/Psiphon-Labs/psiphon-tunnel-core

We use Java (Android app), Obj-C and Swift (iOS app), C++ (Windows app), Go (cross-platform core client and server), Python/JavaScript/C/shell script (server-side stack), ElasticSearch/Logstash/Kibana (stats), and more.

= Contact =

[email protected]

Psiphon is helping almost 2.5 million Russians per day access the rest of the internet. (Which is just what we do.)

https://psix.ca/d/nyi8gE6Zk/regional-overview?orgId=2&var-re...

Psiphon | Senior Software Engineer | https://psiphon.ca | Toronto, Canada | Full-time | REMOTE for now, REMOTE/ONSITE hybrid later

Psiphon Inc. is looking for experienced software developers to join our Toronto team.

= What we do =

We develop and operate Psiphon, an Internet anti-censorship network that helps millions of people in freedom-restricted countries access uncensored Internet every day. We work at the leading edge of circumvention technology, where the latest network protocol and endpoint obfuscation research is rapidly deployed into production around the world.

Our tasks include censorship technology research, server and client software development, and operation of a dynamic, global network of thousands of proxy servers.

We’re a small team looking for skilled and enthusiastic people to join us. We offer great compensation and benefits and flexible work arrangements.

= Tech stack =

Much of our system is open source, check it out at https://github.com/Psiphon-Inc/psiphon/ and https://github.com/Psiphon-Labs/psiphon-tunnel-core

We use Java (Android app), Obj-C and Swift (iOS app), C++ (Windows app), Go (cross-platform core client and server), Python/JavaScript/C/shell script (server-side stack), ElasticSearch/Logstash/Kibana (stats), and more.

= Contact =

[email protected]