This message was created automatically by mail delivery software. Error A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: vast-s...@instantiations.com SMTP error from remote mail server after end of data: host aspmx.l.google.com [2a00:1450:4010:c05::1b]: 550-5.7.1 This message does not have authentication information or fails to pass 550-5.7.1 authentication checks. To best protect our users from spam, the 550-5.7.1 message has been blocked. Please visit 550-5.7.1 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.1 information. j1si4504138lfb.52 - gsmtp
Not sure if this is a problem on my side or on Instantiations' Can anybody shed some light on this?
Joachim
I just tried to send a message to VAST support multiple times and got this in response from Google:
This message was created automatically by mail delivery software. Error A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: vast-support@instantiations.com