Zaujimavy sendmail

[Gratz Jaroslav]

Proc to posilate 3x a jeste s runzym odesilatelem???

On Mon, 8 Jan 2001, Peter Ziak wrote:

> 05:09:41.948618 195.98.4.245.1130 > 195.168.1.4.domain: 1385+ MX? smtp.nextra.sk. (32)
> 05:09:42.138571 195.168.1.4.domain > 195.98.4.245.1130: 1385 ServFail 0/0/0 (32)
> 
> Vsetky maily visia vo fronte a neodchadzaju. Mam podozrenie na DNS.

Asi jo:

fest ~> nslookup -querytype=MX smtp.nextra.sk
Server:  localhost
Address:  127.0.0.1

Authoritative answers can be found from:
nextra.sk
        origin = ns.nextra.sk
        mail addr = tps.ncc.nextra.sk
        serial = 200101060
        refresh = 28800 (8H)
        retry   = 7200 (2H)
        expire  = 604800 (1W)
        minimum ttl = 86400 (1D)

fest ~> nslookup -querytype=MX smtp.nextra.sk 195.168.1.4
Server:  dns.nx.nextra.sk
Address:  195.168.1.4

*** dns.nx.nextra.sk can't find smtp.nextra.sk: Non-existent host/domain

> Sendmail sa najprv snazi resolvnut MX smtp.nextra.sk a ked dostane odpoved, ze
> DNS server fail, zostane v tomto stave. Netusim, preco resolvuje MX zaznam, ale
> robi to.

Mozna proto, ze MX znamena Mail eXchange :-)

> Ak som skusil iny Smart host, pokusi sa resolvnut MX zaznam, dostane zapornu
> odpoved (ale nie Server failed) a resolvne si A zaznam a postu pekne odosle.

To si nejsem jisty, ze je korektni chovani.

BTW existuje sendmail na linux.cz

Jaroslav Gratz