It is authenticated SMTP access. And more importantly, they inject the login account into the From: line, so if you had an account named [log in to unmask] authenticating in to Google SMTP for the Listserv, every message would appear to be from systemadmin, not the mailing list. It's not a viable option for your purposes. Anne Toal -----Original Message----- From: LISTSERV site administrators' forum [mailto:[log in to unmask]] On Behalf Of Pete Weiss Sent: Monday, March 08, 2010 3:05 PM To: [log in to unmask] Subject: Re: Configuring LISTSERV 15.5 for Google Apps I have no knowledge of Google Apps, but I would be very surprised if Google allowed you to use their smtp server w/o logging in and very disappointed if they did (allow you to use it w/o a login). /Pete On 3/8/2010 2:24 PM, Tom Lorenz wrote: > How do I configure LISTSERV 15.5 for use with Google Apps? It worked > fine with our old email gateway, but since we switched to Google Apps > nothing has gone out. Messages show up in the archives, but never make > it out into the world. I changed the SMTP settings to SMTP.GMAIL.COM >