hMailServer forum

tonda

I know that this is not part of SMTP protocol, but in log files of my hMailServer I have seen some 4XX status messages containing something like "Temporarily rejected, greylisted for 300 seconds"..

tonda

During incoming primary SMTP transaction hMailServer could do following: After incoming MAIL FROM command hMailServer would use MX record of this sender domain to perform new secondary outgoing SMTP transaction with empty sender address (simulating delivery notification) and recipient address used f...

tonda

Exactly, this is it. It would also be nice to know how long is message greylisted and to plan next message delivery right after greylist interval. On the other side this should be also straightforward method for spammers

tonda

My post is targeted only to messages from local hMailServer domains sent to external domains which use greylisting. From my customer's point of view it seems that message hangs on my hMailServer and sometimes it it hmm, well, not so easy to explain this situation to them..

tonda

This "hook" should be called after message delivery when last SMTP transaction return code is known. The main reason is also greylisting - I would like to inform sender of message that message has not been delivered now and is probably greylisted and waits for delivery. Sometimes it happens to me th...

tonda

Administrator could set it up like this: Delivery attempts 1..3 every 10 minutes Delivery attempts 4..X every 60 minutes Reason is simple: greylisting and occassional network errors. I do not want to set up hMailServer to send undelivered messages for example every 5 minutes for two or three days be...

tonda

Activate AWStats log and you will be at least able to see some info about messages processed by hMailServer together with delivery status code. This should help you to find out what messages your hmailserver processess and what is the result.

tonda

As I can see in log - processing of first two mails (originating at 205.209.136.53 a 205.209.136.180) also ended with hMailserver message "530 authentication required". Why do you think that hmail server has sent these two messages? Decision whether to use authentication or not takes part in the mom...

tonda

Just an idea: I have seen a lot of 127.0.0.1 addresses in your log. What is your localhost IP range setting? What happens when e-mail arrives from spammer through ASSP and ASSP in turn connects to hmailserver from localhost address? I suppose hmailserver uses localhost IP range and appropriate setti...

tonda

Do you have reverse DNS record correctly set up for your domain?

tonda

Activate SMTP log and post content of log file here. It will be possible to find out what happens during SMTP transaction with these servers.

tonda

What is your "Require Authentication for deliveries" setting in Internet range? Is it "To remote accounts" checked?
It seems to me you allow to deliver mail messages to remote addresses to anybody from internet who uses valid account name without authentication.

tonda

I would use this feature for removing my own headers, added to every message during script processing. I use them for some kind of statistics and do not want to publish it to mail recipients.

tonda

You can use oMessage.RefreshContent() to refresh message content after Spamassassin modifies original file.

tonda

Try to use oMessage.RefreshContent()

tonda

Did you try to look to Documentation? http://www.hmailserver.com/documentatio ... _mx_backup

tonda

ad message import. I have found that some messages in .xml backed up file have contain in Filename attribute whole path to file, including d:\maildata, so this is reason, why those messages was not possible to restore. The only common attribute to these messages is, that have date older than 9.12.20...

tonda

Thank you Martin, what other information will you need from me? I can send to you my backup file, but it is quite large (about 170MB). I think I will be online during weekend so we can cooperate when collecting necessary informations. Old system uses external MySQL database, latest hmailserver build...

tonda

Really nobody has moved old server to new one between those two database engines? I really do not want to move all settings and messages manually...

tonda

Another problem when testing restore of all settings including messages, I have data directory moved to d:\maildata on old server and trying to restore also to d:\maildata. Folder names in error messages contain from some reason string "d:\maildata" in the middle of filename: "APPLICATION" 1932 "200...

tonda

Another problem:
3. From about 15 whitelist items there are only 2 items imported.

tonda

I try to move an existing installation of hmailserver from server where I use MySQL to newly installed server where I use MS SQL server. I tried to test backup-restore procedure and found these problems: 1. Some datetime values in backup are set to 0000-00-00 00:00:00 values. MS SQL server will not ...

tonda

Did you check documentation for example here: http://www.hmailserver.com/documentation/v4.3/?page=feature_scripting_onacceptmessage You can reject message by setting Result value. I think this is exactly what you need. zen.spamhaus.org is perfect black list but I have found some false positives comi...

tonda

Download this tool and look which process listens on port 25:

http://www.microsoft.com/technet/sysint ... pView.mspx

tonda

ad 1. What is the reason not to block port 25 but at the same time do not allow mail relay? This error message is from Outlook trying to send mail through your hmailserver somewhere? ad 2. I do not understand what do you mean by "added a route using mx.hamilserver.com"? Can you explain it please? ad...

tonda

Maybe bug? I have antivirus configured so, that when virus is found, message is deleted. When this situation occurs, error HM4403 Could not read message header since file was not available arises: "DEBUG" 3732 "2007-02-12 22:03:05.406" "ClamWinVirusScanner::Scan() - C:\Program Files\ClamAV\clamdscan...

tonda

This is another reason why I like hMailServer, flexible development, thank you Martin :D Regarding API, I think, it is necessary to define all reasonable applications, that should access and manage hMailServer. When there is possibility to access and manage hMailServer from applications written in m...

tonda

I think message manipulation and also logging is also important part of COM API, because it allows to implement features, that are not possible by using rules. - I would like to have access to delivery counter for messages, that are delivered several times in order to skip antispam check, performed ...

tonda

Using hMailServer about 4 months, about 20 domains, around 1000 mail messages per day. Around 1/3 of spam messages are filtered by default hMailServer features, another spam messages are filtered by phising and scam signatures of ClamAV (see http://www.sanesecurity.com). I was very surprised by amou...

tonda

And what about firewall and some type of inspection module, which checks POP3 traffic? Or some POP3 proxy?

tonda

How did you set up authentication in Outlook 2003?

tonda

Do you use software, which performs any kind of POP3 protocol inspection? This means antivirus, firewall etc?

tonda

Can anybody explain to me, what are advantages of this authentication comparing to SMTP authentication? Agree with Martin, I also do not like features, that can lower security level of my server.

tonda

Pheraps Hotlanta ment computer name taken from HELO command during SMTP transaction in order to use it later in scripts during message processing?

tonda

Can you spend few minutes to search content of this forum?

For example here: http://www.hmailserver.com/forum/viewto ... elete+rule
Is this it?

tonda

Can you spend few minutes by reading documentation of hMailServer? For example here: http://www.hmailserver.com/documentatio ... ence_rules

tonda

Copy them to ClamAV data folder - ClamAV finds them after next database reload (noticeable from increased number of signatures). Warning: files downloadable from this site with extension .gz are not gzipped, it is necessary to rename them to extension .ndb.

tonda

I have found those additional phising and scam signatures for ClamAV here: http://www.sanesecurity.com/clamav/

tonda

Those 3 other users are from same domain as customer's domain or are from another domain?

tonda

What about spam sent by local users which are permitted to send to external servers?

tonda

I agree with martin. If you implement this check, you can easily become source of so called "collateral spam". Imagine situation when spammers send 1000 messages to your server and your server responds by generating other 1000 messages partly to not-existent recipients taken from faked spam mails (=...

tonda

Can you start hMailServer for a while and post log file here? It should contain at least SMTP and Debug log items. (martin was faster)...

tonda

What is your DNS server configuration? Ask administrator of hosting company and describe him this problem. He should be able to help you, I feel it to be some problem with DNS configuration of your hosted server.

tonda

No, it is a feature.

tonda

Would it be possible to add to Message object information about unsuccessfull delivery count? I use scripts with SpamAssassin and messages, undelivered on first attempt, are uselessly checked during subsequent attempts by antivirus and antispam. I would like to check messages only before first deliv...

tonda

Martin, when do you plan to release this new build please?

tonda

Read this: http://www.hmailserver.com/documentatio ... d_for_spam

tonda

Only to believe is obviously not enough in IT...

I think you answered your own question in your last post. Yes, try to configure your ISP DNS server address to preferred DNS of network adapter.

tonda

According to http://www.spamhaus.org/zen/, sbl-xbl.spamhaus.org should be replaced by zen.spamhaus.org, because the sbl-xbl.spamhaus.org zone will eventually become obsolete and may in the future be withdrawn from service...

tonda

Do your Internet Service Provider have own mail server, which you can use as smarthost? This would solve all your problems I think.

tonda

Sure, post detailed information here. It is necessary to know: 1. how was incoming message to asuka@yagicode.com handled by hmailserver = log from this message processing 2. if message was relayed correctly to exchange server, it is necessary to know what happened to it after receiving. 3. it is nec...

tonda

What else except writing this post did you do in order to configure your mail servers?

I recommend you to read hMailServer documentation for example here: http://www.hmailserver.com/documentatio ... nce_routes

tonda

You did not answer my question. Where is this zipcode stored? Body? Specific message header?

tonda

Where is this zip code exactly stored?

tonda

Have you noticed my post above? Martin, do you plan to implement this? ad 6) This Headers collection should be also updated when message file is changed during OnDeliverMessage (for example by SpamAssassin) and than it is necessary to use newly added headers. Easiest method (IMHO) would be new proce...

tonda

Does hmailserver use general timeouts for its connections (defined by default for TCP/IP stack) or use own internal values? How are dead (=not corectly closed, without data transfer) connections handled?

tonda

It happens for some domains that antispam MX check returns not correct results. For example (from real mail - one of Czech search engines): Return-Path: <www-data@enigma.centrum.cz> X-hMailServer-Spam: YES X-hMailServer-Reason: 550 Domain does not have any MX records. This company sends mail message...

tonda

There is new version of sawin32, which incorporates SpamAssassin 3.1.7.

tonda

Remarks to Hotlanta post from 2007-01-04 (in my country there is still 2007-01-03): ad 3) What about outgoing spam? What to do if some message from local account (for example from system, which uses hMailServer as smarthost and uses special account for authentization) will be spam? I think it is not...

tonda

This problem was finally solved thanks to the cooperation with Martin. When it is necessary to use FileSystemObject for writing some values (for example Subject of processed message) and it is possible that this value will contain characters with diacritical marks, it is necessary to open text file,...

Search found 93 matches

Sender Address Verification

Something like OnDeliverMessageEnd

Variable interval between defined message delivery attempts

Restore problem MySQL -> MS SQL

Additional signatures for ClamAV

COM API - Message unsuccesfull delivery count

sbl-xbl.spamhaus.org -> zen.spamhaus.org

SMTP timeouts for delivery queue

Antispam MX check - not correct for some domains