Some emails will not go through
I have a unique problem. I am using ipower pop email. Comcast is our ISP. We have a Sonicwall TZ 170 firewall in place. When the sonicwall is in place with default settings except the lan and wan configured and the smtp server is set to ipower's server, emails that are sent to bellsouth.net, gmail.com and a few others that I know of, will never get to there destination. I have no error messages or bouncebacks. The emails leave the outbox and is never heard from again. I can have the sonicwall in place and use comcast's smtp server and they arrive to those destinations within seconds. I can remove the sonicwall and use the ipower smtp server and everything works as well. With the sonicwall in place and I send an email with ipower's webmail to my bellsouth or gamil account, it never arrives. The outlook configuration is correct.
I have spent a day with Ipower support to no avail. does anyone have any ideas?
I have spent a day with Ipower support to no avail. does anyone have any ideas?
Start here: http://office.microsoft.com/en-us/outlook-help/what-is-the-enable-logging-troubleshooting-option-HA001174266.aspx
Are you sure the sonicwall is part of the problem? I suspect Comcast may be blocking smtp to other servers. There's no reason you can't use Comcast's SMTP server for sending email.
Can you try if you can connect to google on port 25?
On the command prompt type:
telnet 74.125.148.10 25
Please let me know if you can connect without any error:
You should get a reply like the one below:
220 Postini ESMTP 253 y6_30_0c7 ready. CA Business and Professions Code Section
17538.45 forbids use of this system for unsolicited electronic mail advertisements.
This will validate if your sonicwall is blocking outbound smtp for certain domains..
On the command prompt type:
telnet 74.125.148.10 25
Please let me know if you can connect without any error:
You should get a reply like the one below:
220 Postini ESMTP 253 y6_30_0c7 ready. CA Business and Professions Code Section
17538.45 forbids use of this system for unsolicited electronic mail advertisements.
This will validate if your sonicwall is blocking outbound smtp for certain domains..
ASKER
I tried to telnet into the ipower server and received
220 ESMTP Mon, 23 Aug 2010 16:25:30 -0400: UCE strictly prohibited
so I can see the server, also it is just some emails that aren't receving
I am not sure it is the sonicwall But when I took it out and just used the comcast gateway it worked.
220 ESMTP Mon, 23 Aug 2010 16:25:30 -0400: UCE strictly prohibited
so I can see the server, also it is just some emails that aren't receving
I am not sure it is the sonicwall But when I took it out and just used the comcast gateway it worked.
ASKER
I also teleneted 74.125.148.10.25 and got the CA response above.
Can you clarify "so I can see the server, also it is just some emails that aren't receving "
Do you mean you can send some emails to gmail, but not all are received by the recipient?
If you cannot send email to a particular domain at all, i will start looking at the blacklist,
Do you mean you can send some emails to gmail, but not all are received by the recipient?
If you cannot send email to a particular domain at all, i will start looking at the blacklist,
I am not familiar with Sonicwall, but in Cisco ASA firewall, we had to disable "inspect ESMTP" command to make sure that there is no mail flow issue. DO you know if there is a similar command on Sonicwall?
ASKER
Well, when I send the telenet command I get a reply back.
Some people receive emails that are sent by us but not all.. People at bellsouth.net and people at gmail Do not ever receive emails when it is configured with the ipower mail server and the sonicwall is in place. Right now I have just the comcast box and configured outlook to the ipower smtp server and I am receiving emails at bellsouth.net and my gmail account but when I put the sonicwall backinto play the emails never show. BUT I can have the sonicwall in place and change my smtp server to comcast and the emails will show. I have not seen an inspect ESMTP in the sonicwall.
Some people receive emails that are sent by us but not all.. People at bellsouth.net and people at gmail Do not ever receive emails when it is configured with the ipower mail server and the sonicwall is in place. Right now I have just the comcast box and configured outlook to the ipower smtp server and I am receiving emails at bellsouth.net and my gmail account but when I put the sonicwall backinto play the emails never show. BUT I can have the sonicwall in place and change my smtp server to comcast and the emails will show. I have not seen an inspect ESMTP in the sonicwall.
Are you configured with a static or DHCP configuration for the WAN of your Sonicwall? When you bypass the sonicwall, what do you have between your test device and the Internet? UCE stands for Unsolicited Commercial E-Mail. Do you have any of the security services enabled on the sonicwall (Content Filter, IPS, etc.)?
When you were on the phone with Ipower did they say mail was being delivered to bellsouth.net and that is why they could not help you further?
Do you have the latest image (firmware) for the tz 170?
Do you have the latest image (firmware) for the tz 170?
ASKER
Static WAN configuration.
When the sonicwall is not in place The network is directly connecting to the comcast modem.
I have put the sonicwall back to default and do not have any security services turned on.
Do you think it could be something with my IP address?
When the sonicwall is not in place The network is directly connecting to the comcast modem.
I have put the sonicwall back to default and do not have any security services turned on.
Do you think it could be something with my IP address?
ASKER
Yes IPOWER said they tested and mail is being received from their server......
ASKER
yes the firmware on the SW is the latested. That is one of the first thisngs I checked.
Do you mean, received TO their server? This implies that the email is getting to their server from the Outlook client through the Sonicwall, then being passed on by their server to gmail.com. With the Sonicwall in place, can you email to yourself via ipower? If so, send one to yourself with the sonicwall in place and one without the sonicwall in place. Review the header and see what might be changing. I'm wondering if the filtering of the other providers is blocking something based off SPF rules or something odd ball like that.
ASKER
Ipower says Messages are being received at bellsouth.net and Gmail FROM Ipowers server
I can send and receive to my ipower account.... I can send to other accounts. there are a few that I can't . i.e. my bellsouth.net account and my gmail account never receve any messages......unless the sonicwall is gone OR I use comcast smtp server. I will try comparing the header info
I can send and receive to my ipower account.... I can send to other accounts. there are a few that I can't . i.e. my bellsouth.net account and my gmail account never receve any messages......unless the sonicwall is gone OR I use comcast smtp server. I will try comparing the header info
ASKER
The only difference in the header info that I see is that my WAN address changes when I take out the Sonicwall from my static x.x.x.165 to the comcast gateway address x.x.x.166
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ASKER
I did find out that the x.x.x.165 is blacklisted by only 3 lists, I am thinking that is why some emails are received and some are not. thatnks for all the great input!