server - Postfix TLS connection timeout - Ask Ubuntu


if wrong forum question, please let me know

i have home ubuntu 14.04 lamp server thats been working correctly few months now, sometime in past 2 weeks stopped being able send out emails anymore php. i'm inexperienced in linux, might have missed obvious, after 5 hours of troubleshooting decided time ask help, so: please help?!

mail transfer agent: postfix running relay zoho using tls on port 587 running @ home, isp (verizon) blocks port 25

trying send test messages php , in terminal mail command, same result both.

my domin: greenmatter.us

it seems i'm not able establish encrypted connection them, i'm not sure why since haven't changed since last time working. if point me down right path, i'd appreciate (some of things i've tried below)

mail log snipit: oct 31 17:26:23 greenmatter postfix/qmgr[1998]: eab633c7e: from=, size=381, nrcpt=1 (queue active)

oct 31 17:26:53 greenmatter postfix/smtp[3118]: connect smtp.zoho.com[165.254.168.48]:587: connection timed out

oct 31 17:26:53 greenmatter postfix/smtp[3118]: eab633c7e: to=, relay=none, delay=6906, delays=6876/0.05/30/0, dsn=4.4.1, status=deferred (connect smtp.zoho.com[165.254.168.48]:587: connection timed out)

if run openssl s_client -connect smtp.zoho.com:587 hangs , outputs: connect: connection timed out connect:errno=110

if run openssl s_client -connect greenmatter.us:587 outputs: connect: connection refused connect:errno=111

if run openssl s_client -connect greenmatter.us:587 -servername greenmatter.us -showcerts | openssl x509 -text -noout outputs: connect:errno=111 unable load certificate 139754715526816:error:0906d06c:pem routines:pem_read_bio:no start line:pem_lib.c:703:expecting: trusted certificate


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