On Fri, Aug 28, 2026 at 01:15:51PM -0700, Erwin Harte via mailop wrote:
> On 8/28/26 12:45, Scott Q. via mailop wrote:
>
> Seeing a similar timeout from our AWS infrastructure in Canada and
> Australia, but no issue in US, UK, DE, JP, or IN locations. No idea
> what Canada and Australia might have in common, in this picture
> (ca-central-1 and ap-southeast-2, for what it's worth).
Confirmed for AU below.
On Fri, Aug 28, 2026 at 04:28:10PM -0400, Scott Q. via mailop wrote:
> Very strange. For now we are routing through smtp.google.com which
> works as usual. Now for the hard part...reaching someone at Google to
> look at this!
[ I know someone to ping, done... ]
From isi.edu in California:
$ for f in ipv{4,6}; do for mx in mx{1..4}.smtp.goog; do
posttls-finger -o inet_protocols=$f -F /etc/pki/tls/cert.pem -c
-Lsummary $mx
done; done
posttls-finger: Verified TLS connection established to
mx1.smtp.goog[216.239.32.151]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
(256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1)
server-digest SHA256
posttls-finger: Verified TLS connection established to
mx2.smtp.goog[216.239.34.151]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
(256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1)
server-digest SHA256
posttls-finger: Verified TLS connection established to
mx3.smtp.goog[216.239.36.151]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
(256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1)
server-digest SHA256
posttls-finger: Verified TLS connection established to
mx4.smtp.goog[216.239.38.151]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
(256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1)
server-digest SHA256
posttls-finger: Verified TLS connection established to
mx1.smtp.goog[2001:4860:4802:32::97]:25: TLSv1.3 with cipher
TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature
ECDSA (prime256v1) server-digest SHA256
posttls-finger: Verified TLS connection established to
mx2.smtp.goog[2001:4860:4802:34::97]:25: TLSv1.3 with cipher
TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature
ECDSA (prime256v1) server-digest SHA256
posttls-finger: Verified TLS connection established to
mx3.smtp.goog[2001:4860:4802:36::97]:25: TLSv1.3 with cipher
TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature
ECDSA (prime256v1) server-digest SHA256
posttls-finger: Verified TLS connection established to
mx4.smtp.goog[2001:4860:4802:38::97]:25: TLSv1.3 with cipher
TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature
ECDSA (prime256v1) server-digest SHA256
From a Leaptel network in Melbourne, AU:
posttls-finger: Failed to establish session to mx1.smtp.goog via
mx1.smtp.goog:25: connect to mx1.smtp.goog[216.239.32.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx2.smtp.goog via
mx2.smtp.goog:25: connect to mx2.smtp.goog[216.239.34.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx3.smtp.goog via
mx3.smtp.goog:25: connect to mx3.smtp.goog[216.239.36.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx4.smtp.goog via
mx4.smtp.goog:25: connect to mx4.smtp.goog[216.239.38.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx1.smtp.goog via
mx1.smtp.goog:25: connect to mx1.smtp.goog[2001:4860:4802:32::97]:25:
Permission denied
posttls-finger: Failed to establish session to mx2.smtp.goog via
mx2.smtp.goog:25: connect to mx2.smtp.goog[2001:4860:4802:34::97]:25:
Permission denied
posttls-finger: Failed to establish session to mx3.smtp.goog via
mx3.smtp.goog:25: connect to mx3.smtp.goog[2001:4860:4802:36::97]:25:
Permission denied
posttls-finger: Failed to establish session to mx4.smtp.goog via
mx4.smtp.goog:25: connect to mx4.smtp.goog[2001:4860:4802:38::97]:25:
Permission denied
From an Aussie Broadband network in Melbourne AU:
posttls-finger: Failed to establish session to mx1.smtp.goog via
mx1.smtp.goog:25: connect to mx1.smtp.goog[216.239.32.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx2.smtp.goog via
mx2.smtp.goog:25: connect to mx2.smtp.goog[216.239.34.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx3.smtp.goog via
mx3.smtp.goog:25: connect to mx3.smtp.goog[216.239.36.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx4.smtp.goog via
mx4.smtp.goog:25: connect to mx4.smtp.goog[216.239.38.151]:25: Connection timed
out
posttls-finger: Failed to establish session to mx1.smtp.goog via
mx1.smtp.goog:25: connect to mx1.smtp.goog[2001:4860:4802:32::97]:25:
Permission denied
posttls-finger: Failed to establish session to mx2.smtp.goog via
mx2.smtp.goog:25: connect to mx2.smtp.goog[2001:4860:4802:34::97]:25:
Permission denied
posttls-finger: Failed to establish session to mx3.smtp.goog via
mx3.smtp.goog:25: connect to mx3.smtp.goog[2001:4860:4802:36::97]:25:
Permission denied
posttls-finger: Failed to establish session to mx4.smtp.goog via
mx4.smtp.goog:25: connect to mx4.smtp.goog[2001:4860:4802:38::97]:25:
Permission denied
--
Viktor. 🇺🇦 Слава Україні!
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