Device: Peplink Balance
Firmware: 6.3.0s026 build 3119
While attempting to configure Email Notification, following the steps outlined in the Peplink KB, I receive a “test failed” error whenever I click the [Send Test Notification] button:
[INFO] Try email through auto detected connection [INFO] SMTP through SSL connected <-] 220 smtp.gmail.com ESMTP m84sm19350740pfi.75 - gsmtp ->] EHLO balance.peplink.com <-] 250-smtp.gmail.com at your service, [xxx.xxx.xxx.xxx] <-] 250-SIZE 157286400 <-] 250-8BITMIME <-] 250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH <-] 250-ENHANCEDSTATUSCODES <-] 250-PIPELINING <-] 250-CHUNKING <-] 250 SMTPUTF8 ->] AUTH PLAIN WxGCqZQjnBTPDwkAeXbzXlMoRTHhdlawLseW <-] 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbsT [ERROR] [sent AUTH PLAIN WxGCqZQjnBTPDwkAeXbzXlMoRTHhdlawLseW ] [result 534] [expect 235] unknown response "534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=HDQcxmkU "
Shortly after these test failures, I received an email from Google with the following security message:
Sign-in attempt prevented
Someone just tried to sign in to your Google Account email@example.com from an app that doesn’t meet modern security standards
Is there a known workaround for this, or is there a firmware update in the works to address this issue?