Veja como está indo:
host> echo "Hey my man" | mail -s "Testing" [email protected]
Em seguida, em /var/log/mail.log:
Sep 13 12:08:31 host postfix/pickup[738]: EB0535EF3F3: uid=501 from=<user>
Sep 13 12:08:31 host postfix/cleanup[753]: EB0535EF3F3: message-id=<[email protected]>
Sep 13 12:08:31 host postfix/qmgr[739]: EB0535EF3F3: from=<[email protected]>, size=309, nrcpt=1 (queue active)
Sep 13 12:08:32 host postfix/smtp[755]: connect to gmail-smtp-in.l.google.com[72.14.213.27]:25: Host is down
Sep 13 12:08:32 host postfix/smtp[755]: connect to alt1.gmail-smtp-in.l.google.com[74.125.127.27]:25: Host is down
Sep 13 12:08:32 host postfix/smtp[755]: connect to alt2.gmail-smtp-in.l.google.com[74.125.67.27]:25: Host is down
Sep 13 12:08:32 host postfix/smtp[755]: connect to alt3.gmail-smtp-in.l.google.com[74.125.45.27]:25: Host is down
Sep 13 12:08:32 host postfix/smtp[755]: connect to alt4.gmail-smtp-in.l.google.com[209.85.227.27]:25: Host is down
Sep 13 12:08:32 host postfix/smtp[755]: EB0535EF3F3: to=<[email protected]>, relay=none, delay=0.22, delays=0.02/0.01/0.19/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[209.85.227.27]:25: Host is down)
Ah, realmente? O Gmail está inativo? Na verdade não: funciona com meus vários aplicativos de e-mail, etc. executando dig alt4.gmail-smtp-in.l.google.com
yields:
; <<>> DiG 9.6.0-APPLE-P2 <<>> alt4.gmail-smtp-in.l.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57897
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4
;; QUESTION SECTION:
;alt4.gmail-smtp-in.l.google.com. IN A
;; ANSWER SECTION:
alt4.gmail-smtp-in.l.google.com. 168 IN A 209.85.227.27
;; AUTHORITY SECTION:
google.com. 567 IN NS ns1.google.com.
google.com. 567 IN NS ns4.google.com.
google.com. 567 IN NS ns3.google.com.
google.com. 567 IN NS ns2.google.com.
;; ADDITIONAL SECTION:
ns1.google.com. 768 IN A 216.239.32.10
ns2.google.com. 657 IN A 216.239.34.10
ns3.google.com. 867 IN A 216.239.36.10
ns4.google.com. 598 IN A 216.239.38.10
;; Query time: 14 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Mon Sep 13 12:08:43 2010
;; MSG SIZE rcvd: 201
Parece bom para mim. Eu tentei minha conta do Google Apps e recebi:
Sep 13 12:26:16 host postfix/smtp[1160]: connect to ASPMX.L.GOOGLE.COM[74.125.127.27]:25: Host is down
Sep 13 12:26:16 host postfix/smtp[1160]: BB2655EF5D7: to=<[email protected]>, relay=none, delay=5.1, delays=0.01/0.01/5.1/0, dsn=4.4.1, status=deferred (connect to ASPMX.L.GOOGLE.COM[74.125.127.27]:25: Host is down)
Mas é claro que não é baixo. Esta é uma instalação de Snow Leopard de estoque - não brincou com arquivos de configuração do postfix ou qualquer coisa. Preciso de email para trabalhar para mensagens relacionadas ao trabalho cron e isso está me deixando louco.
Alguma ideia? Há também esta prova de evidência:
host> telnet aspmx.l.google.com 25
Trying 74.125.67.27...
telnet: connect to address 74.125.67.27: Host is down
telnet: Unable to connect to remote host
Existe algo sendo filtrado no meu nível de ISP ou o quê?