Topic: 504 5.5.2 <pdev10>: Helo command rejected: need fully-qualified hostname: gmail

[devnullius]

From my devnullius gmail.com I started to receive these errors more and more:
504 5.5.2 <pdev10>: Helo command rejected: need fully-qualified hostname

It's not very often, but often enough.

At first, I blamed it on other email servers but today I sent an email to someone, got a reply, replied to it and 504 5.5.2 A fresh email to the same email address also returned this

I have no idea where to look for it. I just log in to devnullius account and do my thing. Google does not show much relevance either...

Anyone an idea? *any* idea?

Devvie

[Samker]

D., check this solution: http://www.egroup-us.com/2010/01/how-to-fix-exchange-error-504-552-helo-command-rejected-need-fully-qualified-hostname-4/

[devnullius]

Might be it! But could not happen with webinterface for gmail... I'll check the details next time this happens :s

Thanks!

Devvie

[devnullius]

Got another example

http://mxtoolbox.com/Public/Tools/EmailHeaders.aspx?huid=2ca3d0dd-b44f-4761-8e8f-31fe9ebdd21f

https://toolbox.googleapps.com/apps/messageheader/analyzeheader
MessageId   
CAAL+8E4p9z7p=xEEJyM2rTm0W1jxDCyOYFwVobh7UG-nB_haEg@mail.gmail.com
Created at:   21-12-2014 01:12:16 ( Delivered after )
From:   devnullius Plussed <devnullius@gmail.com>
To:   support@cryptoball.io
Subject:   payment going wrong

#   Delay   From*         To*   Protocol   Time received   
0         →      10.66.126.16   Web   21-12-2014 01:12:16

Reverse lookup:
(unable to resolve 10.66.126.16)

[Samker]

hmmm... don't know , maybe J. have some idea?

[jheysen]

The IP seems odd to me :/
Does this only happens when using a mail client, or also with gmail's web interface?

[devnullius]

Yeah I've been looking at that too but might not have looked good enough (IP).

It's from the web interface and I don't think I have extensions running that can cause this... I use BetterGmail but that plays with CSS. I don't use BrandMyMail on devnullius account. So that's out too. Only thing left is an extension that monitors (and reads out) new emails in certain labels.

Sigh...

[devnullius]

Almost makes you think I have a hidden webserver running... But no 10-network is known to me - fully 192.168 here!

[jheysen]

try to mail me, see if it bounces back :p

[devnullius]

try to mail me, see if it bounces back :p

It's not every email. Just a few of them - but a bit too much of them to be irrelevant :/