emails taking a long time to be received

[adamjimenez]

I have some users complaining that certain emails are taking many hours to be received or are not received at all.
This has only been an issue since upgrading to 9.5. I'm using qmail.

I disabled greylisting on the server and it's still a problem.
It's very hard to recreate as emails sent by me come thru straight away.

Some senders have received this bounce message:

"451 qq trouble in home directory (*4.3.0. deferred 451 qq. Message could not be delivered for 3 hours, message will be deleted from queue."

I've installed all the latest updates and performed:
/usr/local/psa/admin/sbin/mchk --with-spam

But this issue still persists, please help.

 

[IgorG]

I can assume that problem related to impossibility of resolving some domain names. Do you have something like

failure: Sorry,_I_couldn't_find_any_host_named_domain.com._(#5.1.2)/

related to these emails in Plesk maillog /usr/local/psa/var/log/maillog? Check that these domains are resolvable from your Plesk server.

 

[adamjimenez]

I've got errors like this:

May 13 07:09:20 shiftcreate spf filter[55258]: Error code: (26) DNS lookup failure
May 13 07:09:20 shiftcreate spf filter[55258]: Failed to query MAIL-FROM: Temporary DNS failure for 'amazon.com'.
May 13 07:09:20 shiftcreate spf filter[55258]: SPF result: tempfail


no 5.1.2 errors

 

[IgorG]

Is amazon.com resolvable from your server?
Check it with 'host' command at least.

 

[adamjimenez]

# host amazon.com
amazon.com has address 72.21.207.65
amazon.com has address 72.21.210.250
amazon.com has address 207.171.166.252
Host amazon.com not found: 2(SERVFAIL)
amazon.com mail is handled by 10 smtp-fw-2101.amazon.com.
amazon.com mail is handled by 10 smtp-fw-4101.amazon.com.
amazon.com mail is handled by 10 smtp-fw-9101.amazon.com.

 

[IgorG]

Seems there is problem with your DNS servers described in /etc/resolv.conf
I have following:

# host amazon.com
amazon.com has address 72.21.207.65
amazon.com has address 72.21.210.250
amazon.com has address 207.171.166.252
amazon.com mail is handled by 10 smtp-fw-9101.amazon.com.
amazon.com mail is handled by 10 smtp-fw-2101.amazon.com.
amazon.com mail is handled by 10 smtp-fw-4101.amazon.com.

As you can see - it is without any errors.

 

[shahriarr]

I have exactly the same Problem as adamjimenez with some domains hosted in my Plesk server.I am running Plesk 10.4.4, centos-6 64 bit with Qmail. Please help "Parallels Team" as our clients doesn't want to hear any excuse at all.

 

[Jaysterboo]

For three weeks now I have experienced the same problem . . . several clients hosted on my PLESK server say when they send emails more than half are never received by the intended recipient. I am running 10.1.1. A message sent to two addresses, one to an address hosted on my server will go through, the other addressed to 'an outside' email host will just disappear. Any solutions?

 

[ErwanG]

Hello,

Same problem. Have you found a solution ?