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User profile for user: julius ong
julius ong Author
User level: Level 1
0 points

Microsoft Outlook Express can not send email

hi,

i have setup a mail server w/ mac osx snow leopard mac mini, and i have setup the smtp and open relay to spesific IP address.

Now everything looks fine for all the users, except for the users that using outlook express, they can retrieve emails, but can not send.

the error message is like this :

The message could not be sent because one of the recipients was rejected by the server. Server Error: 504, Error Number: 0x800CCC79

MacbookPro, Xserve, Macpro, Imac, Mac OS X (10.6.3), unix

Posted on Nov 14, 2010 11:58 AM

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2 replies
User profile for user: UptimeJeff
UptimeJeff
User level: Level 4
3,479 points

Nov 14, 2010 4:35 PM in response to julius ong

probably your smtpd helorestrictions.

In /etc/postfix/main.cf, look for this
smtpd helorestrictions = _________

If you see this:
smtpd helorestrictions = reject invalid_helohostname reject non_fqdn_helohostname

Change it to this:
smtpd helorestrictions = permit_mynetworks permit saslauthenticated reject invalid_helohostname reject non_fqdn_helohostname

Then stop/start mail service.

If that doesn't solve it, please post the unedited output of 'postconf -n' run from Terminal.

Jeff
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Microsoft Outlook Express can not send email

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