Sveiki,
Situacija: buvo keiciamas interneto tiekejas. Pasikeite IP. MX irasas ir 
reverse patvarkyti naujam IP adresui.

Problema: I dauguma severiu pastas nueina. Bet yra keletas bjauriu, kurie 
nepriima.

Pavyzdziai -
Postfixas rodo:
lost connection with mxs.mail.ru[94.100.176.20] while receiving the initial 
server greeting
lost connection with alt1.gmail-smtp-in.l.google.com[74.125.47.27] while 
receiving the initial server greeting

Bandau telnet'inti:
##################################
[root@mail etc]# telnet mxs.mail.ru 25
Trying 94.100.176.20...
Connected to mxs.mail.ru.
Escape character is '^]'.
Connection closed by foreign host.
##################################
[root@mail etc]# telnet gmail-smtp-in.l.google.com 25
Trying 209.85.129.27...
Connected to gmail-smtp-in.l.google.com.
Escape character is '^]'.
Connection closed by foreign host.
##################################

ar tai gali buti susije su tuo, kad DNS irasai pilnai nesuvaiksciojo (jau 
praejo visa para)? Ar sie serveriai turi kazkokia baze, kurioje saugo pries 
tai buvusius DNS irasus ir teks kokia savaite laukti, kol jie expire'insis?