Knowledgebase

Portal Home > Knowledgebase > Google Message Security > Outgoing messages bounced with 554 No relaying allowed - psmtp


Outgoing messages bounced with 554 No relaying allowed - psmtp




Issue

Outgoing emails from your mail server are rejected by Postini with the error: 
554 No relaying allowed - psmtp 

Resolution: 

You are routing outgoing mail through Postini. Since Postini does not handle mail for those domains, the traffic is bouncing: 

1) Check the DNS MX entries for the mail server in question (e.g. for mail server mail.domain.com). From a UNIX prompt type: 
dig mail.domain.com mx 

.] 
mail.domain.com. 1H IN CNAME domain.com. 
domain.com. 1H IN MX 100 domain.com.sNa1.psmtp.com. 
domain.com. 1H IN MX 200 domain.com.sNa2.psmtp.com. 
domain.com. 1H IN MX 300 domain.com.sNb1.psmtp.com. 
domain.com. 1H IN MX 400 domain.com.sNb2.psmtp.com. 
domain.com. 1H IN MX 500 mail.domain.com. 

[In this case there is an CNAME entry for mail.domain.com pointing back to the domain which has DNS MX records routing to Postini.] 

2) Remove the CNAME and create an A record for the mail host.

 



Was this answer helpful?

Add to Favourites Add to Favourites    Print this Article Print this Article

Also Read
Delays receiving traffic from MessageLabs MTAs (Views: 1388)
Outbound: Message deferred - "File write error - psmtp" (Views: 688)
Deleting an Outbound Server Entry from Postini (Views: 3074)
Postini Realtime Filter Status Dashboard (Views: 1871)
Postini Facts and Figures (Views: 1350)