Dear Kebba,
my guess is, that lighttec.com.eg have a misconfigured SPF record. (IF (!) they use Google services for their mail !) TXT record -> "v=spf1 +a +mx +ip4:213.158.187.39 +ip4:213.158.187.0/24 -all"
So Google (with mail-wm0-f52.google.com [74.125.82.52] ) is sending on behalf of lighttec.com.eg which is not included in their SPF record, so your mail server is telling you, that something is wrong here and blocks
it.
So: might be SPAM, might be misconfiguration on lighttec.com.eg side. But your config is OK.
Kind regards,
Michael Seidel
Systemadministrator
FAI rent-a-jet AG
http://www.fai.ag/
-----Urspr��ngliche Nachricht-----
Von: users [mailto:users-bounces@exim4u.org] Im Auftrag von Kebba Foon
Gesendet: Montag, 1. Februar 2016 13:06
An: users@exim4u.org
Betreff: [Exim4U] Not authorized by SPF
Dear list,
Am receiving below error for this particular user, i don't understand why spf is rejecting this address or how to white-list it from spf check:
2016-02-01 10:38:47 H=mail-wm0-f52.google.com [74.125.82.52] F=<hamada_hegazy@lighttec.com.eg> rejected RCPT <********@qcell.gm>:
Sender address not permitted - SPF.: Not authorized by SPF
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