POP Email on PC through GPRS, any ideas?

[Boerewors]

My wife and I use GPRS to connect to the Internet during the day and for some reason any emails we send using our normal outlook POP3 apps bounce back with a message saying that it was blocked and each message has this:

"Recipient address rejected: Policy Rejection- 559 Blacklisted due to illegal HELO or SpamTrap"

What can we do?

 

[Deckert]

Hi,

Which SMTP server are you using to send the mails?

--deckert

 

[Deckert]

Hi again,

After some quick research I can tell you exactly why your mails are being blocked.

Vodacom is (maddeningly) still using an outbound mail server that is in the same netblock as their outbound GPRS/3G netblock.

Even if you use smtp.vodacom.co.za as your SMTP server (which has a perfectly valid globally unique IP address of 196.11.146.148), they still NAT it to a 196.207.x.x IP address.

Here's why the block gets blacklisted:

When some agressive RBLs (blacklist databases) receive spam from a certain IP, they do a lookup on that IP, find out what netblock it is in and then blacklist the entire netblock. Because the SMTP rerlay server is in that same netblock, it gets blacklisted too*.

Vodacom: put your outbound mail servers in a separate netblock and see yuor blacklist issues drop dramatically.

--deckert

*

inetnum:      196.207.32.0 - 196.207.47.255
netname:      VODA-GPRS1
descr:        Vodacom
descr:        PO Box 7243
descr:        Roggebaai
descr:        Cape Town
descr:        8012
country:      ZA
org:	      ORG-VA67-AFRINIC
admin-c:      JVA8-AFRINIC
tech-c:       JVA8-AFRINIC
status:       ASSIGNED PI
mnt-by:       AFRINIC-HM-MNT
mnt-lower:    AFRINIC-HM-MNT
changed:      hostmaster at afrinic.net 20050707
source:       AFRINIC

 

[Boerewors]

So there is nothing we can do?

 

[ambo]

Who is hosting your mail?

You should contact them and check if they run an MSA (mail submission agent) that allows SMTP AUTH. If this is configured properly then it should avoid all blacklisting problems.

 

[Beri]

I use my pop from absa and did not change anything. send and recieve e-mail as usual. using phone bluetooth and laptop.. This is done on vc vm mtn

 

[ambo]

How did you used to send mail when it worked? Through your dial up connection?

You need to contact ABSA and find out from them how you should have your system setup. You will probably (at the very least) need to configure SMTP AUTH.