When i send the sms to consumer cellular Which uses att this is the failure message
Fri Aug 7 20:17:55 2020 user.notice lmalarm: Sending SMS to xxxxxxxxxx@
xxxxxxxxxx@txi.att.net
Fri Aug 7 20:17:56 2020 user.notice lmalarm: sendmail: recipient address
xxxxxxxxxx@txi.att.net not accepted by the server
Fri Aug 7 20:17:56 2020 user.notice lmalarm: sendmail: server message: 501 5.5.2 RCPT TO syntax error
Fri Aug 7 20:17:56 2020 user.notice lmalarm: sendmail: could not send mail (account default from /etc/msmtprc)
Fri Aug 7 20:19:12 2020 user.warn linkmeterd: Alarm 3H started ringing
Fri Aug 7 20:19:12 2020 user.warn linkmeterd: Alarm stopped
Fri Aug 7 20:19:12 2020 user.notice lmalarm: Sending SMS to xxxxxxxxx@
xxxxxxxxxx@mailmymobile.net
Fri Aug 7 20:19:13 2020 user.notice lmalarm: sendmail: recipient address xxxxxxxxxx@
xxxxxxxxxx@mailmymobile.net not accepted by the server
Fri Aug 7 20:19:13 2020 user.notice lmalarm: sendmail: server message: 501 5.5.2 RCPT TO syntax error
Fri Aug 7 20:19:13 2020 user.notice lmalarm: sendmail: could not send mail (account default from /etc/msmtprc)
The 2 different @ addresses is the 2 i found for consumer cellular and this is when i send a test sms the xs are my cell number but i'm pretty sure you know that. I'll have to try consumer cellular monday the on line q i was number 73 and 1/2 hour wait on the phone. Guess they figure us old codgers have lots of spare time.