> On Jan 14, 2019, at 10:28 AM, Fazzina, Angelo <angelo.fazz...@uconn.edu> > wrote: > > Hi, I suspect this is wrong > > relayhost = [smtp.gmail.com]:587
No, that setting is just fine. Per the subject, the OP is having an issue with SASL authentication to this relay. Given: smtp_sasl_password_maps = hash:/etc/postfix/sasl/passwd The thing to check is whether the table contains correct information (without posting the password, or its base64 encoding to the list). The OP should run: postmap -q "smtp.gmail.com" hash:/etc/postfix/sasl/passwd and make sure that the output contains the correct username and password (not posted here). -- Viktor.