I seem to be having problems delivering emails to yahoo, how can I troubleshoot this ?
mailq: ... 777DAB446E8 7709303 Fri Apr 9 12:15:32 a...@googlemail.com (lost connection with e.mx.mail.yahoo.com[67.195.168.230] while sending end of data -- message may be sent more than once) l...@yahoo.com.au m...@yahoo.com y...@yahoo.com ... ------------------------------ log: ... Apr 13 19:24:01 postfix/smtp[24377]: 777DAB446E8: to=<y...@yahoo.com>, relay=c.mx.mail.yahoo.com[206.190.54.127]:25, delay=371309, delays=370795/0.37/210/304, dsn=4.4.2, status=deferred (lost connection with c.mx.mail.yahoo.com[206.190.54.127] while sending end of data -- message may be sent more than once) Apr 13 19:24:08 postfix/smtp[24378]: 777DAB446E8: to=<l...@yahoo.com.au>, relay=b.mx.mail.yahoo.com[74.6.136.65]:25, delay=371316, delays=370795/0.38/328/193, dsn=4.4.2, status=deferred (lost connection with b.mx.mail.yahoo.com[74.6.136.65] while sending end of data -- message may be sent more than once) Apr 13 20:35:27 postfix/qmgr[3973]: 777DAB446E8: from=<s...@googlemail.com>, size=7709303, nrcpt=13 (queue active) Apr 13 20:39:37 postfix/smtp[30451]: 777DAB446E8: lost connection with g.mx.mail.yahoo.com[98.137.54.238] while sending end of data -- message may be sent more than once Apr 13 20:40:49 postfix/smtp[30450]: 777DAB446E8: lost connection with c.mx.mail.yahoo.com[206.190.54.127] while sending end of data -- message may be sent more than once Apr 13 20:43:37 postfix/smtp[30451]: 777DAB446E8: to=<l...@yahoo.com.au>, relay=f.mx.mail.yahoo.com[98.137.54.237]:25, delay=376085, delays=375595/0.05/251/240, dsn=4.4.2, status=deferred (lost connection with f.mx.mail.yahoo.com[98.137.54.237] while sending end of data -- message may be sent more than once) Apr 13 20:46:32 postfix/smtp[30450]: 777DAB446E8: to=<m...@yahoo.com>, relay=e.mx.mail.yahoo.com[67.195.168.230]:25, delay=376260, delays=375595/0.03/323/342, dsn=4.4.2, status=deferred (lost connection with e.mx.mail.yahoo.com[67.195.168.230] while sending end of data -- message may be sent more than once) Apr 13 20:46:32 postfix/smtp[30450]: 777DAB446E8: to=<y...@yahoo.com>, relay=e.mx.mail.yahoo.com[67.195.168.230]:25, delay=376260, delays=375595/0.03/323/342, dsn=4.4.2, status=deferred (lost connection with e.mx.mail.yahoo.com[67.195.168.230] while sending end of data -- message may be sent more than once) -- Voytek