Hi All, Some new tips on handling Gmail as server SMTP which worked for me. Below is an example of a working server *"user_db.pl"* file *using Gmail as SMTP host*. Note that the *Pop user is also with Gmail,* in this case, but with a * different* Gmail address account. The Pop user will have to go into his Gmail account and *allow access* to the server SMTP Gmail account, to access his Pop user account. It will work OK initially without this step above, but then later it suddenly won't.... K1RJV K3UK AI7RR K2MO K8ZAG KC9SGV KZ5ED Station callsign: KC9SGV Commands for KC9SGV: 1: Pop host = pop.gmail.com 2: Pop user = kc9sgv1000@xxxxxxxxx 3: Pop password = mysecret 4: SMTP server = smtp_host 5: From address = kc9sgv1000@xxxxxxxxx 6: Mail file = /home/administrator/.pskmail/.mailuser (or similar) 7: APRS password = none 9: Delete callsign 0: Exit Command nr: The *server station* also needs to *signed out of all Google and Gmail accounts* from the same IP address. Otherwise Gmail handles multiple simultaneous transactions as undesirable, and locks the server out. The client must enable POP, and disable IMAP in his Gmail account. Hope it works for you too. KC9SGV