server > problem s smtp

[poser]

mam internet od t-cmu takze verejna dynamicka ip. nie su to nejake zavratne rychlosti ale snazim sa rozbehat mail server. problem je ze ziaden mail stade neposlem ... skusal som hmail a sprava sa mi vrati s necim takym "Remote server replied: 554 5.7.1 Service unavailable; Client host [91.127.104.14] blocked using zen.spamhaus.org" . koli dyn. IP mam free domenu na dyndns... da sa to vobec spojazdnit ? neviete v com by mohla byt chyba..? os pouzivam xp

[matopd]

Cau,

A aky mas modem\router ????

Ak mas router, mas v nom presmerovane porty??? Na dyndns je myslim este aj sluzba MX responder, este som to neskusal, hovori Ti to nieco???

M

[poser]

Cau,

A aky mas modem\router ????

Ak mas router, mas v nom presmerovane porty??? Na dyndns je myslim este aj sluzba MX responder, este som to neskusal, hovori Ti to nieco???

M

porty su otvorene problem je mail neposlem pretoze som na ciernej listine. ten MX responder mi nic nehovori ale skusim to tam este prehladat.

[faugusztin]

Ak si v zozname spamhausu, tak si mail neposles pokym to nevyriesis :
http://www.spamhaus.org/pbl/query/PBL043750" onclick="window.open(this.href);return false;

V podstate je to ale jeden blok IP T-Comu :
http://whois.domaintools.com/91.127.0.0" onclick="window.open(this.href);return false;

[kajfun]

vies kolko hentakych blokov ma t-com? ty tu prezentujes 65536 adries co je dost nezaujimave.

[faugusztin]

kajfun, tvoju poznamku totalne nechapem.

Ma to jasne napisane :
"Remote server replied: 554 5.7.1 Service unavailable; Client host [91.127.104.14] blocked using zen.spamhaus.org".

Preco ho zablokovalo ?
http://www.spamhaus.org/pbl/query/PBL043750" onclick="window.open(this.href);return false;

Kód: Vybrať všetko

91.127.0.0/16 is listed on the Policy Block List (PBL)
This IP range has been identified by Spamhaus as not meeting our policy for IPs which should deliver 'direct-to-mx' mail to PBL users.

Patri 91.127.104.14 pod 91.127.0.0 ? Ano. Tak o com sa bavime ? Spamhaus ho blokuje, a pokym bude skusat odosielat maily cez tuto IP, tak sa moze aj roztrhnut, spamhaus ho bude blokovat.

Zdovodnenie :

Due to the vast volumes of compromised PCs spewing spam "direct-to-mx" from dynamic domestic Internet connections, most major mail systems choose not to accept unauthenticated SMTP mail from servers on dynamic IPs.

Unless you use Authenticated SMTP, there is no way for a machine to differentiate between legitimate email sent by your server from a dynamic IP and spam mail sent by a virus on a dynamic IP next door to yours. Most networks therefore nowadays make it their policy not to accept unauthenticated SMTP email sent "direct-to-mx" from dynamic IP pools. The Spamhaus PBL enables networks to enforce this policy.

If you're on a dynamic IP address and you absolutely need to run your own mail server, then use your ISP's outgoing mail relay as a 'smarthost'. If your ISP does not provide an outgoing mail relay, find a commercial smarthost provider. Such smarthosting arrangements are very common and inexpensive; contact your ISP or a hosting company for information.

Industry best practice is to block outgoing port 25 of dynamic pools (MAAWG documents).

[kajfun]

mas pravdu, reagoval som blbo - ta adresa je proste blacklistovana. Ja som chcel povedat ze keby toto bol jediny rozsah telecomu co je blokovany... tak by bolo fajn.