I recently started using Thunderbird as my email client and I was wondering if I could ask a few questions about the connections it initially makes when it starts up.
First up, I have noticed that when I start Thunderbird it downloads ~14MB of data from somewhere, and uploads ~500KB of data. This is before I have logged into my email servers, so it can't be checking my emails. Can anyone tell me what data transfer is actually occurring?
Secondly, according to the network stats, connections to the following servers are made - I have run nslookup for each to identify the server name:
Code: Select all
root# nslookup 91.189.91.38
38.91.189.91.in-addr.arpa name = banjo.canonical.com
root# nslookup 185.125.190.39
39.190.125.185.in-addr.arpa name = aerodent.canonical.com
root# nslookup 172.67.74.82
** server can't find 82.74.67.172.in-addr.arpa: NXDOMAIN
root# nslookup 185.125.190.36
36.190.125.185.in-addr.arpa name = actiontoad.canonical.com
root# nslookup 185.125.190.39
39.190.125.185.in-addr.arpa name = aerodent.canonical.com
root# nslookup 91.189.91.38
38.91.189.91.in-addr.arpa name = banjo.canonical.com
root# nslookup 91.189.91.39
39.91.189.91.in-addr.arpa name = kazooie.canonical.com
root# nslookup 96.17.179.193
193.179.17.96.in-addr.arpa name = a96-17-179-193.deploy.static.akamaitechnologies.com
root# nslookup 104.26.2.27
** server can't find 27.2.26.104.in-addr.arpa: NXDOMAIN
In particular, should I be worried about the 2 unknown server addresses (172.67.74.82, 104.26.2.27)?
Thanks very much,
3g