email being blocked by spam filters - New postifx setup
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email being blocked by spam filters - New postifx setup
Hi,
I'm very new to mail applications so I'm hoping someone out there can enlighten me on what's causing this issue. Here is my setup:
Postfix running on SuSE 9.2
Cyrus IMAP acting as mailbox_transport
Squirrelmail running as web interface
everything works -- ie. I can send and receive mail inside and outside my network
(main.cf is below)
Mail server sits behind an ADSL modem/router connecting to my ISP
running named for dns support, I have forward and rev. lookup entries
I also have my MX 10 entry for the mail server
My problem: I can send email to, for example my corporate account which is outside my local network, I also can send mail to my Yahoo account - but it is intercepted as "junk mail". I have run into many other cases where I am considered junk mail by other people I know and want to send mail to. Its a new domain, and I've only been up and running for 2 weeks now. I am not a spammer. Only thing i can think of is that maybe these recipient mail systems are trying to authenticate me and think I'm not really coming from an authentic email adress? I don't know where to begin to fix this problem, but it basically makes my e-mail setup not-usable. I apprecaite any help you can offer me.
Distribution: Dragged kicking and screaming to RHEL
Posts: 132
Rep:
If you can send mail to some but not all then most likely your subnet is listed in a blacklist somewhere and the mail servers that your trying to send to are checking your ip against those lists. On many occasions legit users get caught in an ip range that is being blocked.
Option 1: bounce your mail off your ISP's mail server, usually not blocked.
Thanks for the idea -- I'm going to work on changing my config to relay to my provider and see if that makes a difference. However I'm not quite sure how to do that? (planning on researching online) if anyone happens to know the 2 or 3 key things to do this, (and I have to provide a login and password to use my ISP's SMPT server) I'd apprecaite if you could post a quick fix.
In order to try to cut out spam, many ISPs do not allow mail from individual mail servers. You can ask different ISPs to add you to the White list, but as mentioned above, it is easier to work with your ISP's smtp server.
My postfix config file has outgoing mail server entry. I changed the smtp.myserver.com to smtp.comcast.net. as I am with comcast now. There is no user/passwd needed in my setup as comcast knows my IP.
I also have to change my POP mail clients to specify this as well.
I have had very good luck using Webmin to config these settings. It can be more intuitive than grepping through config files.
can someone tell me what is a MX 10 and how to set one up.
I am having the same problem. My emails are being filter out by yahoo.com and being viewed as junkmail.
Tommy were you able to bounce your emails off your ISP? Have you figure out how to supply a login and password?
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