Posted on October 26th, 2006 by Peter |
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If you ever felt awkward for not knowing how to calculate subnet masks without using a subnet mask calculator, consider that neither we could have survived without NetCalc. There are so many things in life to waste your time with, all better than learning subnet calculation, right?

When we decided to use the dotted subnet mask notation for defining network ranges in ORF (you know, like 192.168.251.1/255.255.255.0), we thought that it is only us who have troubles converting the 192.168.251.1-192.168.251.255 range in mind into a subnet masked format. As it slowly turned out, we were wrong. Good news: finally we fix this.
The next ORF release is going support various network range notations, so you can basically enter IP ranges in whatever format they come. The supported formats are:
- 192.168.251.0-192.168.251.255 (text range)
- 192.168.251.0/24 (CIDR notation)
- 192.168.251.0/255.255.255.0 (dotted IPv4 subnet mask)
- 192.168.251.* (wildcarded)
The next thing to come is the Log Viewer update – brand new, improved filtering, free-text search and updates required by the log format changes.
Posted on October 13th, 2006 by Peter |
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I just finished implementing an ORF improvement that we call Combined Actions. This allows combining specific On Arrival actions, for instance, tagging the subject plus the header plus redirecting the email.
Unrelated as it may seem, this improvement bought some changes to the ORF Text log format. The latest 3.0 log format has event classes for each type of action (14 event classes, from TagMailHeader to IgnoreMailRecipient) and so combined actions would have required to introduce new event classes for every possible combination (or, just to allow multiple event classes for a single event), causing a boom in the number of possible event classes.
This, among with other reasons, made us to re-think how logs should like and to come up with a few changes that we believe make logs easier to read and more useful.
First, we reduced the number of event classes to five: System, Pass, Whitelist, Blacklist and Intermediate. I think the first four are quite straightforward, but the Intermediate event class requires a little explanation: this is an event class that reports an intermediate action performed on the email. Currently, these are:
- Recipient removal at On Arrival. This may occur if some, but not all of the email recipients are blacklisted, e.g. by the Active Directory recipient validation.
- Recipient whitelisting at On Arrival. Again, this may occur if some, but not all of the email recipients are whitelisted.
- Attachment replacement (Attachment Filtering).
To identify the exact action performed, a new Action column has been introduced (can describe multiple actions, e.g. TagSubject+Redirect).
Another change was to eliminate the optional “Server” column, as it made little sense to log the the server name with every log message when the server name cannot be changed without rebooting the server. The local server name was moved to the ORF log header and it is no longer optional.
The next version’s log will have one more thing that I guess you will like: an optional email subject column. The subject is logged in UTF-8 encoding (ASCII letters kept human-readable), in URL Encoded format.
Posted on October 5th, 2006 by Peter |
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One of the most frequently requested features is to exclude Out Of Office autoresponses from the Auto Sender Whitelist address collection. I am happy to report that the next ORF release will take care of this problem.
In addition to the current IP-based exceptions, the next version will support making exceptions based on the subject of the outgoing email. This is specifically for filtering out Out Of Office autoresponses or any other automatic response where the subject has a distinguishing pattern.
Some automatic responses may not have a common target IP or fix subject – for example, if you run a mailing list or a challenge/response email filter – and for excluding these the next version will offer another technology, called “Auto Response Detection”. This will check if an email response is sent so fast that it is reasonable to suspect an automatic response.
For the subject-based exceptions, we’d like to provide a default list of Out Of Office subject patterns in as many languages as possible. Unfortunately, we did not find a website which collect these, so if you can extend or correct the list we have now, please drop us an email to orf-support@vamsoft.com with the subject sample.
Bulgarian: Извън офиса съм Автоматичен отговор
Chinese (simplified): 外出时的自动答复
Chinese (traditional): 郵件答錄機自動回覆
Danish (?): Autosvar – Ikke til stede
English: Out of Office AutoReply
French: Réponse automatique d’absence du bureau
German: Abwesenheitsnotiz
Hungarian: Házon kívüli automatikus válasz
Japanese: 不在時の自動応答
Portuguese (?): Resposta automática para ausência do escritório
Polish: Autoodpowiedź (poza biurem)
Russian: Автоответ при отсутствии на работе
Slovenian: Samodejni odgovor o odsotnosti iz pisarne
Spanish: Respuesta automática por ausencia de la oficina
Thanks for everyone who helped to update or extend the list!