smtp:51.15.36.40Find Problems smtp
220 cloud.offshoringhost.com ESMTP Postfix
Test Result
SMTP Reverse DNS Mismatch OK - 51.15.36.40 resolves to cloud.offshoringhost.com
SMTP Valid Hostname OK - Reverse DNS is a valid Hostname
SMTP Banner Check OK - Reverse DNS matches SMTP Banner
SMTP TLS OK - Supports TLS.
SMTP Connection Time 0.860 seconds - Good on Connection time
SMTP Open Relay OK - Not an open relay.
SMTP Transaction Time 3.129 seconds - Good on Transaction Time
Session Transcript:
Connecting to 51.15.36.40
220 cloud.offshoringhost.com ESMTP Postfix [707 ms]
EHLO KEEPER3.mxtoolbox.com
250-cloud.offshoringhost.com
250-PIPELINING
250-SIZE 204800000
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN [716 ms]
MAIL FROM:<
supertool@mxtoolbox.com>
250 2.1.0 Ok [721 ms]
RCPT TO:<
test@example.com>
454 4.7.1 <
test@example.com>: Relay access denied [718 ms]
KEEPER3v2 4242ms