We have multiple links available to check if the mail server are correctly configured.
To check reverse DNS
Check MX records for domain
http://mxtoolbox.com/NetworkTools.aspx
http://viewdns.info/reversedns/
Check if the IP/domain is blacklisted for spam
http://mxtoolbox.com/NetworkTools.aspx
http://viewdns.info/spamdblookup/
http://www.abuseat.org/lookup.cgi
Check if the server is configured for open relay
http://mxtoolbox.com/diagnostic.aspx
SPF Records
To create spf record and validate
www.kitterman.com/spf/validate.html
https://www.mail-tester.com/spf-dkim-check
DKIM Record
http://www.appmaildev.com/en/dkim/
https://www.mail-tester.com/spf-dkim-check
http://dkimcore.org/c/keycheck
DMARC Records
https://www.fraudmarc.com/dmarc-check/
https://otalliance.org/resources/spf-dmarc-tools-record-validator
SSL CHECK
https://www.ssllabs.com/ssltest/analyze.html?d=mc.swipezoom.com
https://www.sslshopper.com/ssl-checker.html
mail reputation
https://www.senderscore.org/lookup.php?lookup=plesk11.tronic.com.au&validLookup=true
https://www.senderbase.org/lookup/?search_string=plesk11.tronic.com.au