[fpc-pascal] blocked on fpc-devel

[Jonas Maebe]

On 17/02/19 15:27, Ryan Joseph wrote:
> I’ve noticed the last few days that my messages aren’t getting through to the fpc-devel list. Can one of the admins check to see if I was blocked or something? Sorry to post here but I didn’t know where else to ask. Thanks.

 From what I can tell, the smtp servers you use do not handle 
greylisting correctly (http://projects.puremagic.com/greylisting/ ).

When a mail is greylisted, it gets temporarily rejected. At the same 
time, the receiving mailserver (lists.freepascal.org in this case) 
records the from and to address of the mail and sending server's 
ip-address in a whitelist database (along with a delay counter). The 
idea is that the sending mail server tries again after the delay is 
over, and the receiving mailserver sees in its whitelist database that 
an entry exists for this combination of from/to/ip-address. It then lets 
the mail through.

This works fairly well because many spam programs are not real mail 
servers and hence just give up if the first delivery attempt fails. For 
some reason, the sending mailservers you use does the same (they're all 
from eigbox.net). This means they're probably badly configured.

The reason you can (usually) successfully can send mails to fpc-pascal, 
is that there are several existing entries for eigbox.net smtp servers 
and your email address in combination with the fpc-pascal mailing list 
in the whitelist database. If you keep trying to send mails to 
fpc-devel, one of them will eventually get through as well. The longer 
it has been since you last sent a mail to an FPC mailing list, the less 
chance there is your mail will get through because the bigger the chance 
that the from/to/ip-address combination has been removed again from the 
whitelist.


Jonas