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Fastmail supports Sieve rules which is really nice because I can do all my filtering server-side https://www.fastmail.help/hc/en-us/articles/360060591373-How-t

by fotta 3y ago

Fastmail supports Sieve rules which is really nice because I can do all my filtering server-side https://www.fastmail.help/hc/en-us/articles/360060591373-How-to-use-Sieve https://www.fastmail.help/hc/en-us/articles/360060591373-How...

sliken 3y ago
As does Dovecot's delivery agent.
aidenn0 3y ago
I'll have to look into that; right now I use isync and run maildrop on everything in my inbox; upside is it works for all my imap accounts; downside is that there is a delay, causing other clients to sometimes see unfiltered mail.
inkyoto 3y ago
Except Sieve rules in Fastmail either work or do not, and it is non-deterministic. A few notoriously persistent problems I have been facing with them for years: – A notorious spammer that has been spamming me for over a decade that the Fastmail spam filter does not trap[*]. They are easy to screen out via Sieve rules using the "From" header. Except, for 1 out 5 spam emails from them the Sieve rules do not fire, and the spam gets into the inbox. – Simple email filing into different folders using From/Subject headers. It mostly works except for just a handful senders whose emails Fastmail Sieve do not fire upon no matter how I modify them. They just. do. not. work. I am talking about the most basic From/Subject filing rules. [*] Spam filtering in Fastmail has been another pet peeve of mine. It is average at best, and mediocre on average. Some spam emails that slip through need to be sent into the spam folder (that has the training enabled) for more than 10x times before*
- nmjenkins 3y ago
  (I work for Fastmail). That sounds very surprising. Please email support@fastmail.com with the details and we'll be happy to look into it for you. I don't believe we've ever had an instance of Sieve not working correctly. (We have had plenty of reports that boiled down to people making errors in their Sieve scripts; we recommend most people use our UI instead to make their rules, to allow you to preview results and help ensure the syntax is correct.)

by fotta 3y ago

sliken 3y ago

As does Dovecot's delivery agent.

aidenn0 3y ago

I'll have to look into that; right now I use isync and run maildrop on everything in my inbox; upside is it works for all my imap accounts; downside is that there is a delay, causing other clients to sometimes see unfiltered mail.

inkyoto 3y ago

Except Sieve rules in Fastmail either work or do not, and it is non-deterministic. A few notoriously persistent problems I have been facing with them for years: – A notorious spammer that has been spamming me for over a decade that the Fastmail spam filter does not trap[*]. They are easy to screen out via Sieve rules using the "From" header. Except, for 1 out 5 spam emails from them the Sieve rules do not fire, and the spam gets into the inbox. – Simple email filing into different folders using From/Subject headers. It mostly works except for just a handful senders whose emails Fastmail Sieve do not fire upon no matter how I modify them. They just. do. not. work. I am talking about the most basic From/Subject filing rules. [*] Spam filtering in Fastmail has been another pet peeve of mine. It is average at best, and mediocre on average. Some spam emails that slip through need to be sent into the spam folder (that has the training enabled) for more than 10x times before*

nmjenkins 3y ago
(I work for Fastmail). That sounds very surprising. Please email support@fastmail.com with the details and we'll be happy to look into it for you. I don't believe we've ever had an instance of Sieve not working correctly. (We have had plenty of reports that boiled down to people making errors in their Sieve scripts; we recommend most people use our UI instead to make their rules, to allow you to preview results and help ensure the syntax is correct.)