search for: mtas

...ne related to the other: 1) Is there an effective maximum of directors that shouldn't be exceeded? That is, even if technically possible, that I shouldn't go over? Since we're 100% NFS, we've scaled servers horizontally quite a bit. At this point, we've got servers operating as MTAs, servers doing IMAP/POP directly, and servers separately doing IMAP/POP as webmail backends. Works just dandy for our existing setup. But to director-ize all of them, I'm looking at a director ring of maybe 75-85 servers, which is a bit unnerving, since I don't know if the ring will be able...

...further write: > For example: Postfix supports both before-queue filters and after-queue filters. Milter-regex[1] supports both multi-header and body checks. Of course, and there is nothing wrong with it. It just runs into the issue I tried to describe: incomplete SMTP implementations from MTAs. Pre-queue filtering happens, before the mail was accepted to be queued. So a before-queue milter can trigger an 5xx status code to reject the mail. This code can be sent in response to steps 2, 3 or 4. According to the smtp specs. But for many years it was code of practice to send error/rejec...

Hi everybody, I have a MTA from Terayon that I try to make run with Asterisk using MGCP channel. The device is running with MGCP 1.0 NCS 1.0 Each time Asterisk try to send a Request (Request Notify, Audit Endpoint....) the device returns error 510 "Protocol Error" Does anybody have already meet this problem and provide me support to make run it ?! (I have already try to change

There are times when I need to call a client from my cell and I want a recording of the call. I was trying to put into an * a way of doing that. Below is what I'm using in my extensions.conf exten=> X,1,Read(num,"/var/lib/asterisk/sounds/mtas/10digit",10,,,5) exten=> X,2,SayDigits(${num}) exten=> X,3,Background(/var/lib/asterisk/sounds/mtas/verify) exten=> X,4,WaitExten(3) exten=> X,5,Monitor(wav,/var/store/calls/InOutRec-${STRFTIME(${EPOCH},,%Y%m%d-%H %M%S)}-${CALLERID(num)}-${EXTEN},mb) exten=> X,6,dial(${b...

...r but it > normally helps, I'm sorry it was unclear, and especially so since you > took the time to read it. > > Let me list the approach we'd prefer: > > (i) MTA open on port 25 for inbound email. > > (ii) MTA not open on any other port, because (for example, our) MTAs > are constantly faced on port 25 with password attacks, malformed > packets, malformed messages that contain scripts, and malformed > protocol sequences; all these show up in the logs. In the past, at > least one of those succeeded. We have a saying: 'once bitten, twice >...

Exists the possibility to define an RPM requires statement with a logic? Like: Requires: mysql-server OR mysql55-mysql-server MTAs like postfix have "Provides: MTA" to provide such facility. I do not see such possibility for DB packages ... Thanks -- LF

...perfomed a lot of migration throught mbox email software to Maildir with dovecot) but i can see that the performance is very poor and receive complaint about delays of autentications of accounts. The solution lives in Metrocluster Netapp storage, filesystem NFS, VMware as a virtualization (the mtas are a virtual machines lives in netapp too) about 4T of data mails and a 10G network connection (betwen mtas and nfs storage) All account information work in LDAP plataform (two servers in replicated mode, no high average or delays detected in this servers) When the traffic have a peak of 180...

I am getting large numbers of these types of messages in my maillog files: somehost.hotmail.com [65.54.246.97] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA on both of our external machines beginning on the same date. These hosts sit on different netblocks and on both machines the sendmail.cf files date from Jan 09, 2007. The last successfull connection from any hotmail acocunt

...ld dovecot be sufficient, or should I try cyrus. I'd rather use components that are available for base or extras repository (or rpmforge). I think that squirrelmail and horde would do a good job for webmail. There shoudn't be any troubles having some redundancy for DNS, web servers, mtas, but what about IMAP/POP? linux-HA? MySQL replication should be enough, I guess. Or maybe linux-HA as well. I wonder if I should add GFS to the mix to have multiple IMAP/POP servers use the same storage. Or maybe IMAP proxies? Any insights welcome :). Ugo

...underbird clients, but I have not figured out yet how to automatically backup all mailboxes. See this question of mine: https://support.mozilla.org/en-US/questions/1243605 So I am trying to design a solution with Dovecot, but I know too little about mail servers. How could I configure Dovecot / MTAs / whatever in order to achieve the "Leave a copy on server" together with "For at most xx days" mentioned above? This way, Dovecot does not need to be exposed on the Internet. Failing that, could someone tell me at least how to configure Dovecot / whatever to download the e...

Hi all: I am learning Dovecot step by step. I have enabled the Submission Server, in the hope that I would not need to learn other MTAs like Postfix. The Submission Server is very comfortable: it picks up the existing Dovecot configuration, so that you do not need to configure any user authentication separately. It is working fine on my test setup. My first thought was that, if the recipient is a local mailbox, the Submission Se...

...dy content... There exists one problem: at this stage of mail reception you have no body content nor header information on which a milter may perform deeper analysis, only envelope data. The SMTP specs itself allow failure codes after any command, even a 5xx after the DATA command. Hoever, many MTAs still ignore error response codes after DATA and take the mail as sent, so that most mail servers will perform any error indication before DATA, at latest after RCPT TO. So the server has to accept mail first before it can scan its header and/or body, and would send out DSNs on rejection at th...

...> mail2.yourdomain.com <http://mail2.yourdomain.com>?IN A 192.168.20.1 > > mail.yourdomain.com <http://mail.yourdomain.com> ?IN A 192.168.10.1 > mail.yourdomain.com <http://mail.yourdomain.com> ?IN A 192.168.20.1 > > > mail1/mail2 is for direct connection (MTAs) > > Your users (outlook, thunderbird, ...) connect to mail.yourdomain.com > <http://mail.yourdomain.com>?which returns the two ip addresses. > > In this scenario MUA just connects to mail.yourdomain.com > <http://mail.yourdomain.com>?and randomly uses one of the two...

...certificate with missing username field ??? ? (ssl_cert_username_field), under some configurations Dovecot ??? ? mistakenly trusts the username provided via authentication instead ??? ? of failing. ??? * ssl_cert_username_field setting was ignored with external SMTP AUTH, ??? ? because none of the MTAs (Postfix, Exim) currently send the ??? ? cert_username field. This may have allowed users with trusted ??? ? certificate to specify any username in the authentication. This bug ??? ? didn't affect Dovecot's Submission service. ??? - pop3_no_flag_updates=no: Don't expunge RETRed message...

...certificate with missing username field ??? ? (ssl_cert_username_field), under some configurations Dovecot ??? ? mistakenly trusts the username provided via authentication instead ??? ? of failing. ??? * ssl_cert_username_field setting was ignored with external SMTP AUTH, ??? ? because none of the MTAs (Postfix, Exim) currently send the ??? ? cert_username field. This may have allowed users with trusted ??? ? certificate to specify any username in the authentication. This bug ??? ? didn't affect Dovecot's Submission service. ??? - pop3_no_flag_updates=no: Don't expunge RETRed message...

Given the following: mailboxes: user1 at example1.com user2 at example1.com user3 at example1.com etc. aliases: whatever at example1.com -> user1 at example1.com whatever at example2.com -> user1 at example1.com whatever at example3.com -> user1 at example1.com Now the problem: example1.com MX goes elsewhere (doesn't point to this server anymore). Domains example2.com and

On Wed, Apr 27, 2016 at 12:50 AM, Alice Wonder <alice at domblogger.net> wrote: > That is the only reliable way to avoid MITM with SMTP. Except I can just strip STARTTLS and most MTAs will continue to connect. Brandon Vincent

...th a value of 63.4 > %.Informational Text: OB SURGERY HUMIDITY ALARM" email_test > > With email_test being a local account... clearly my subject is > truncated. Is there a way to expand that? > A "Subject:" line is just a structured text line in the message body and MTAs (e.g., sendmail) don't do anything differently with it than any other line in a message body. The max length is 998 "characters". I suspect that your MUA or more likely procmail is where the truncation is taking place. I just did: /bin/mailx -s"... 200+ character subject ......

...ome list subscribers post in HTML. In this regard, the Shorewall list seems unique -- most lists that I subscribe to flame HTML posters unmercifully whereas this list is unusually tolerent. While the list server here at shorewall.net accepts and distributes these HTML posts, a growing number of MTAs serving list subscribers are rejecting this HTML list traffic. At least one MTA has gone so far as to blacklist shorewall.net "for continuous abuse"!! I think that blocking all HTML is a rather draconian way to control spam and that the unltimate loser here is not the spammers but the...

On Tue, 16 Jun 2015 11:27:58 -0500, you wrote: >No attempt to deliver almost always means either: >- a DNS problem; the sender can't find the destination, or finds the >"wrong" destination. That would be interesting, since I tried both the actual IP address and the DNS name for the test node. Neither message got through. >- a connectivity problem; the sender can't