Re: Mail server hosted by Comcast
I'm on Comcast and am having no problems. I set the smarthost for sendmail to smtp.comcast.net and, at least so far, have not triggered anything that would block incoming or outgoing mail. All mail from me goes through the official comcast mail server and does not appear to come from a dynamic address. If you use smtp.comcast.net as outgoing I doubt you even need reverse DNS on your IP. Just be sure you update your SPF record to include smtp.comcast.net or something. Everyone has an SPF record, right? As a matter of fact, I'm trying to figure out what my SPF record should be. It should be Comcast's, but they don't seem to have published one. My best guess is to try this. v=spf1 a:smtp.comcast.net ~all But not sure. You need to look at all the mail coming out from your server flowing through smtp.comcast.net and see that its source is always one of the a record IP's for smtp.comcast.net. Matt
Re: Mail server hosted by Comcast
On Aug 10, 2007, at 4:28 PM, Igor Chudov wrote: I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. Our office server is on such a configuration. We have not found any problems with delivering our mail.
RE: Mail server hosted by Comcast
Make sure that the correct DNS records are set up for your domain (including the reverse lookup matching your MX record) and your mail server identifies itself correctly with the DNS that you have configured. -Original Message- From: Vivek Khera [mailto:[EMAIL PROTECTED] Sent: Thursday, August 16, 2007 10:31 AM To: Spamassassin Mailing List Subject: Re: Mail server hosted by Comcast On Aug 10, 2007, at 4:28 PM, Igor Chudov wrote: I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. Our office server is on such a configuration. We have not found any problems with delivering our mail.
Re: Mail server hosted by Comcast
I'm on Comcast and am having no problems. I set the smarthost for sendmail to smtp.comcast.net and, at least so far, have not triggered anything that would block incoming or outgoing mail. All mail from me goes through the official comcast mail server and does not appear to come from a dynamic address. If you use smtp.comcast.net as outgoing I doubt you even need reverse DNS on your IP. Just be sure you update your SPF record to include smtp.comcast.net or something. Everyone has an SPF record, right? Matt
Re: Mail server hosted by Comcast
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 08/16/2007 10:43 AM, Matt wrote: I'm on Comcast and am having no problems. I set the smarthost for sendmail to smtp.comcast.net and, at least so far, have not triggered anything that would block incoming or outgoing mail. All mail from me goes through the official comcast mail server and does not appear to come from a dynamic address. If you use smtp.comcast.net as outgoing I doubt you even need reverse DNS on your IP. Just be sure you update your SPF record to include smtp.comcast.net or something. Everyone has an SPF record, right? Matt As a matter of fact, I'm trying to figure out what my SPF record should be. It should be Comcast's, but they don't seem to have published one. - -- Steve -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFGxNfUeERILVgMyvARAmqFAJ9chrB/r8O2P59uovGKxhMgX947fwCeOLOK sdKFOpN1ZTl6ugOMcDgWxgE= =5Ti8 -END PGP SIGNATURE-
Re: Mail server hosted by Comcast
On 8/10/07, Jonn R Taylor [EMAIL PROTECTED] wrote: Jerry Durand wrote: At 01:28 PM 8/10/2007, Igor Chudov wrote: I am considering a local deal related to hosting by Comcast cable (8mbps down, 1 mbps up). I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. i We're on a dynamic Verizon business DSL and use the Verizon server (with AUTH) and haven't had much trouble. The main thing is, SEND THROUGH A FIXED SERVER. In your case, you might want to use the server from whoever hosts your DDNS. We use Comcast's WorkPlace Enhanced and it has been working very well with a 99.999% uptime. You should get static IP's from them, this way they can set your rDNS to your domain. This is what we do and we have no problem sending to any provider, including AOL and Yahoo. Jonn i will block you for just for giving money to such a crooked evil company. but, probably most people will not :) if your dns is setup ok then i would not worry.
Re: Mail server hosted by Comcast
Igor Chudov wrote: I am considering a local deal related to hosting by Comcast cable (8mbps down, 1 mbps up). I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. i I'm on Comcast and am having no problems. I set the smarthost for sendmail to smtp.comcast.net and, at least so far, have not triggered anything that would block incoming or outgoing mail. All mail from me goes through the official comcast mail server and does not appear to come from a dynamic address.
Mail server hosted by Comcast
I am considering a local deal related to hosting by Comcast cable (8mbps down, 1 mbps up). I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. i
Re: Mail server hosted by Comcast
At 01:28 PM 8/10/2007, Igor Chudov wrote: I am considering a local deal related to hosting by Comcast cable (8mbps down, 1 mbps up). I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. i We're on a dynamic Verizon business DSL and use the Verizon server (with AUTH) and haven't had much trouble. The main thing is, SEND THROUGH A FIXED SERVER. In your case, you might want to use the server from whoever hosts your DDNS. -- Jerry Durand, Durand Interstellar, Inc. www.interstellar.com tel: +1 408 356-3886, USA toll free: 1 866 356-3886 Skype: jerrydurand
Re: Mail server hosted by Comcast
At 13:28 10-08-2007, Igor Chudov wrote: I am considering a local deal related to hosting by Comcast cable (8mbps down, 1 mbps up). I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. It shouldn't be an issue if you have the reverse DNS resolving to your hostname. Regards, -sm
Re: Mail server hosted by Comcast
Jerry Durand wrote: At 01:28 PM 8/10/2007, Igor Chudov wrote: I am considering a local deal related to hosting by Comcast cable (8mbps down, 1 mbps up). I am concerned, however, with me sending email and being on comcast IP range, due to bad rap that Comcast has due to spamming by Comcast hosted zombies. Do you think that my mailserver will have issues if I host it on comcast netwrk? That would be a static IP and, hopefully, I can get comcast to reverse resolve it to a hostname on one of my domains. i We're on a dynamic Verizon business DSL and use the Verizon server (with AUTH) and haven't had much trouble. The main thing is, SEND THROUGH A FIXED SERVER. In your case, you might want to use the server from whoever hosts your DDNS. We use Comcast's WorkPlace Enhanced and it has been working very well with a 99.999% uptime. You should get static IP's from them, this way they can set your rDNS to your domain. This is what we do and we have no problem sending to any provider, including AOL and Yahoo. Jonn
