Re: [CentOS] advice needed about 554 Too many recipients
On Mon, Aug 17, 2009 at 2:03 AM, Bart Schaeferbarton.schae...@gmail.com wrote: On Sun, Aug 16, 2009 at 3:50 PM, Rudi Ahlersrudiahl...@gmail.com wrote: A client of ours just requested to increase the max_recipients in Exim to 300, since he keeps getting 554 Too many recipients error when sending a marketing email from MS Outlook. I would like to know, what are the implications of increasing the default 100 to 300? If 300 email recipients were added to the To: field, does it establish 300 connections to the SMTP server, or not? Locally between Outlook and Exim, no, this won't establish more than one connection to the SMTP server. If Exim is acting as a smart relay, it'll get one copy of the message with the whole list of addresses in one transaction. On the other side between Exim and the eventual recipients of this mail, the likelihood is that Exim will make one or two connections per destination domain. If all 200+ recipients are at the same domain (say, all yahoo.com addresses) then Exim may run into problems, but it's not very likely. However, if that list grows very much larger, both you and your client are going to be a lot happier if the client stops attempting to send out his own marketing mail with Outlook and instead engages a reputable email service provider. Assuming, that is, that he has appropriately confirmed permission to send email to all those people. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Thanx Bart, this explains a lot :) So, as I have feared, I could run into problems with being blacklisted by other mail server then. The client does has legit email addresses, and wants to use Outlook (not everyone can use Linux ;)) since it embeds the images, instead of linking to it on the internet. The exim server in question is a hosting mail server, i.e. it's a mail server, and not a smart relay. I'll see if I can convince the client to use an alternative method of doing this. -- Kind Regards Rudi Ahlers CEO, SoftDux Hosting Web: http://www.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] advice needed about 554 Too many recipients
Rudi Ahlers wrote on Mon, 17 Aug 2009 09:05:34 +0200: I'll see if I can convince the client to use an alternative method of doing this. - mailing list Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] advice needed about 554 Too many recipients
Brian Mathis wrote: Mailing list software (like majordomo) are a terrible way to handle bulk mailing to people. They are not intended to be used for one-way communication, and by default replies to them will get sent to everyone else on the list. It is possible to disable this behavior, but in general this requires delving deep into the config options to make sure you didn't miss anything. Additionally, the people who typically need this kind of software have mostly never heard of the command-line, and would not be anywhere near the skill-level needed to manage mailing list software. I've setup Mailman for announce-only lists for several people and they've generally been quite happy with it. You configure it as a moderated list and only allow the pre-approved moderators to send to the list, and you configure the list so replies go back to a predetermined address (often I create an alias that forwards to a few people).Once you've initially set it up, all list management is done with a web interface. Mailman handles double-opt-in subscriptions so users can add and remove themselves from the list... Tweak the listinfo and footer text to suit the use, and you're off and running. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] advice needed about 554 Too many recipients
On Sun, Aug 16, 2009 at 3:50 PM, Rudi Ahlersrudiahl...@gmail.com wrote: A client of ours just requested to increase the max_recipients in Exim to 300, since he keeps getting 554 Too many recipients error when sending a marketing email from MS Outlook. I would like to know, what are the implications of increasing the default 100 to 300? If 300 email recipients were added to the To: field, does it establish 300 connections to the SMTP server, or not? Locally between Outlook and Exim, no, this won't establish more than one connection to the SMTP server. If Exim is acting as a smart relay, it'll get one copy of the message with the whole list of addresses in one transaction. On the other side between Exim and the eventual recipients of this mail, the likelihood is that Exim will make one or two connections per destination domain. If all 200+ recipients are at the same domain (say, all yahoo.com addresses) then Exim may run into problems, but it's not very likely. However, if that list grows very much larger, both you and your client are going to be a lot happier if the client stops attempting to send out his own marketing mail with Outlook and instead engages a reputable email service provider. Assuming, that is, that he has appropriately confirmed permission to send email to all those people. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
