2018-10-26 10:01 GMT+02:00 Matus UHLAR - fantomas <uh...@fantomas.sk>:
> On 26.10.18 09:27, Poliman - Serwis wrote: > >> So generally speaking - I should check postscreen, use a decent RBL and >> keep smtpd more available for legitimate email. How set decent RBL in >> Postfix and which are decent? >> > > I believe googling for RBLs, especially mailing lists' archives may help to > find out. I use spamhaus, sorbs and spamcop, plus dnswl with postscreen. > > What means/how to do "keep smtpd more available for legitimate email"? >> > > It means that postscreen will take care of blocking spambots, so smtpd > doesn't have to. > > I have one more question which is more less related with main thread. I >> would like to know can I block port 25 on firewall? >> > > not if you want to send and receive mail. > > blocking port 25 is common at service providers, where customers aren't > able > to spam throiugh port 25 (outgoing SMTP) or run mail server (incoming > SMTP). > > While the latter is usually a businness issue - if you want to run > mailserver, you must pay for static IP (static IP is technically good > requirement) and for potential handling of spam reports - the former is > simple and logical prevention of spam from end-users. > end-users are not supposed to contact mail servers > > However, if you are not a service provider, don't simply block 25, if you > want to send/receive mail. > > -- > Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ > Warning: I wish NOT to receive e-mail advertising to this address. > Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. > "Where do you want to go to die?" [Microsoft] > Thank you for answer. I have static IP - I bought VPS from OVH. I have there configured few domains with mailboxes. On the server are services like www, ftp, mail. So, if I understood well, I should block port 25. -- *Pozdrawiam / Best Regards* *Piotr Bracha*
