dovecot - Oct 2020 - SV: SV: Looking for a guide to collect all e-mail from the ISP mail server

Because when I email to friends that are using gmail, my mail ends up in
spam unless  my friends put me in whitelist. Seems to vary however, and
seems to get better with time.

-----Ursprungligt meddelande-----
Fr?n: dovecot-bounces at dovecot.org <dovecot-bounces at dovecot.org> F?r
Marc
Roos
Skickat: den 26 oktober 2020 09:07
Till: dovecot <dovecot at dovecot.org>; sebastian <sebastian at
sebbe.eu>
?mne: RE: SV: Looking for a guide to collect all e-mail from the ISP mail
server


> and also the problem is that gmail imposes heavy spam filters and 
"reputation blocks" 
> meaning smaller providers with low email volumes, are put in the spam 
folder, even if
> they never send spam, just because their email volume is so low (ergo, 
they must 
> prove they don't spam before getting out of ispam folder)
How do you know that? 


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Citeren Sebastian Nielsen <sebastian at sebbe.eu>:
> Because when I email to friends that are using gmail, my mail ends up in
> spam unless  my friends put me in whitelist. Seems to vary however, and
> seems to get better with time.
In order to prevent ending up in spam in GMail, it is necessary to  
have working DKIM and/or SPF for your messages and forward- and  
reverse DNS records for your mailserver match.

> On 26. Oct 2020, at 11.02, Arjen de Korte <build+dovecot at
de-korte.org> wrote:
> 
> Citeren Sebastian Nielsen <sebastian at sebbe.eu>:
> 
>> Because when I email to friends that are using gmail, my mail ends up
in
>> spam unless  my friends put me in whitelist. Seems to vary however, and
>> seems to get better with time.
> 
> In order to prevent ending up in spam in GMail, it is necessary to have
working DKIM and/or SPF for your messages and forward- and reverse DNS records
for your mailserver match.
Even that is not enough. Currently there is no way to guarantee that your email
does not get silently dropped or moved to spam when working with gmail.

Sami

Actually the reverse pointer doesn't have to match. In fact this is
impossible if you are setting up virtual accounts on one server for different
domains. You just need to have a reverse pointer.

Most email servers look to seen if the reverse pointer has a "dyn" in
it and blocks those.





	? Original Message ?	


From: build+dovecot at de-korte.org
Sent: October 26, 2020 2:02 AM
To: dovecot at dovecot.org
Subject: Re: SV: SV: Looking for a guide to collect all e-mail from the ISP mail
server


Citeren Sebastian Nielsen <sebastian at sebbe.eu>:
> Because when I email to friends that are using gmail, my mail ends up in
> spam unless? my friends put me in whitelist. Seems to vary however, and
> seems to get better with time.
In order to prevent ending up in spam in GMail, it is necessary to?
have working DKIM and/or SPF for your messages and forward- and?
reverse DNS records for your mailserver match.

> and forward- and reverse DNS records for your mailserver match.
do even googles ips confirm to this standard?