Search found 10 matches

by minsk
Fri Dec 16, 2016 12:24 pm
Forum: Support
Topic: manually train Bayesian Filter
Replies: 0
Views: 3559

manually train Bayesian Filter

Is it possible to manually submit known-spam and known-good messages to Bayesian Filter? Using thresholds is useless - most of the spam that we receive, scores around 5. Plus there is no way to correct a mistake.
by minsk
Mon Oct 20, 2014 2:53 pm
Forum: Support
Topic: DNS redirection
Replies: 1
Views: 7580

Re: DNS redirection

This is already possible.
Log in to your frapper.com DNS zone.
Add a new CNAME record.
Enter "pics" as the Name.
Enter "pics.ribbit.com" and the Content.
by minsk
Wed Dec 18, 2013 11:14 am
Forum: Support
Topic: Filter based on From matching X-Envelope-From
Replies: 4
Views: 11201

Re: Filter based on From matching X-Envelope-From

This is very helpful. I can at least mark the message as a suspect. Thank you for the tip. I, personally, want to know when the From address that I see is spoofed. There are valid reasons to do this sometimes but this should raise a red flag. That's why, in my opinion, SpamAssassin should have test ...
by minsk
Sat Feb 23, 2013 9:56 am
Forum: Support
Topic: Bounce Messages
Replies: 4
Views: 10771

Re: Bounce Messages

What you are trying to do is against Roller Network's Backscatter Prevention Policy: http://www.rollernet.us/policy/backscatter-prevention.html Quote: "If our mail servers accepted a message on behalf of your mail server, then you must accept the message, regardless of actual intent or content....
by minsk
Thu Feb 21, 2013 12:34 pm
Forum: Support
Topic: Bounce Messages
Replies: 4
Views: 10771

Re: Bounce Messages

You can set maximum message size here:
Mail Services > Mail Domains > Actions > Advanced Options > Maximum Message (DATA) Size
by minsk
Fri Feb 15, 2013 11:17 am
Forum: Support
Topic: Filter based on From matching X-Envelope-From
Replies: 4
Views: 11201

Filter based on From matching X-Envelope-From

Is there a way to filter messages based on whether From header matches X-Envelope-From? Either during SMTP phase or SpamAssassin rule or Sieve script? So many spam messages are just send from a valid source passing SPF but with fake From header.
by minsk
Fri Feb 15, 2013 10:58 am
Forum: Support
Topic: SpamAssassin only scans messages less than 128KiB
Replies: 1
Views: 7492

SpamAssassin only scans messages less than 128KiB

SpamAssassin only scans messages less than 128KiB. This limitation effectively skips spam messages with attachments. And if the attachment is an archive then antivirus will not scan it either. This reduces protection greatly. Is there a way to make SpamAssassin scan a message with attachment even if...
by minsk
Thu Aug 26, 2010 6:56 pm
Forum: Support
Topic: "exp" modifier in sender's SPF
Replies: 1
Views: 3008

"exp" modifier in sender's SPF

Do rollernet SMTP servers recognize "exp" modifier in sender's published SPF record? It seems that they ignore it and return standard "SPF Fail" message.
by minsk
Tue Nov 18, 2008 8:58 am
Forum: Support
Topic: Sieve filtering after Forwarding
Replies: 2
Views: 2926

Sieve filtering after Forwarding

My domain is set up as "Hosted Mailboxes". Mail Forwarding is set up as "Normal Delivery with Maps". I am forwarding postmaster@domain to a regular mailbox maxim@domain. I'd like to use Sieve to file those messages into a subfolder "postmaster". Unfortunately, I can't u...