[google-appengine] Re: server not connect to aspmx.l.google.com 25

Further to the above, aspmx.l.google.com is an inbound mail relay for GSuite / Google Apps , so can only route mail to GSuite domain users or Gmail users. On Sunday, April 30, 2017 at 12:24:11 PM UTC-4, Adam (Cloud Platform Support) wrote: > > S

[google-appengine] Re: server not connect to aspmx.l.google.com 25

Socket connections to most Google IPs are blocked from App Engine , which includes aspmx.l.google.com. However you can connect to smtp.gmail.com on port 465 or 587, which is the recommended way to send GSuite domain email from an ap