I'm doing some testing of SMTP servers. I want to see the capabilities returned by the server in response to a
EHLO. Gmail is timing out for SMTP:
$ dig gmail.com mx ; <<>> DiG 9.8.5-P1 <<>> gmail.com mx ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60432 ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;gmail.com. IN MX ;; ANSWER SECTION: gmail.com. 3599 IN MX 20 alt2.gmail-smtp-in.l.google.com. gmail.com. 3599 IN MX 5 gmail-smtp-in.l.google.com. gmail.com. 3599 IN MX 40 alt4.gmail-smtp-in.l.google.com. gmail.com. 3599 IN MX 10 alt1.gmail-smtp-in.l.google.com. gmail.com. 3599 IN MX 30 alt3.gmail-smtp-in.l.google.com.
$ telnet gmail-smtp-in.l.google.com smtp Trying 188.8.131.52... telnet: connect to address 184.108.40.206: Operation timed out Trying 2607:f8b0:400d:c04::1a... telnet: connect to address 2607:f8b0:400d:c04::1a: No route to host telnet: Unable to connect to remote host
I'm not sure if this is Verizon blocking the connection from a DHCP block, if the problem lies elsewhere, or if Google just does not offer SMTP any longer (perhaps due to all the privacy violations of the US and other governments).
Does Google/Gmail still offer SMTP at port 25?