Hi All, After a recent upgrade we noticed that 3CX did away with being able to use Google public relay and now have to use a dedicated email account. We have been trying to get this to work with no success so far. 3CX v15.5.6354.2 Win Server 2008 R2 I have been through the article hear (https://www.3cx.com/blog/docs/gmail-mail-server/) and set everything correctly but still does not work - all I get is message saying "The operation has cancelled". I noticed in the new version that there is an option for mail server 'Gmail' - have tried using this option which just requires email account and password but still does not work either. Based on packet captures I have taken I can see the SMTP initial handshake and then the SSL handshake between our 3CX server and Gmail's SMTP server but after that no email is actually sent and all I see are TCP Re-transmission packets with no response from the SMTP server. Interestingly enough I did notice that after about 10 min and multiple re-transmission packets being sent that the Gmail SMTP server does respond back with an SMTP packet stating 'Timeout - closing connection'. At this point I don't know why this does not work with Gmail SMTP server - has anyone gotten this working? Have also done the log into the email account on the 3CX server and enabled less secure apps in the email account. Any help is appreciated, thanks.