Re: Postfix for three domains on one host

On 15 Aug 2019, at 22:20, Andrew Bernard wrote: Now am I further confused. What is $myorigin used for then? It is used to qualify bare sender usernames for mail generated locally. The nuances of when that applies can be found in 'man 5 postconf' in the local_header_rewrite_clients and

Re: Postfix for three domains on one host

Now am I further confused. What is $myorigin used for then? Andrew On 16/8/19 12:04 pm, Ralph Seichter wrote: The "From" header is usually provided by the MUA. According to your message headers, you are using Thunderbird, so that's where you define your desired sender address(es). Postfix

Re: Postfix for three domains on one host

* Andrew Bernard: > Does this cover the case where each domain has its own header showing > origin from each distinct domain? The "From" header is usually provided by the MUA. According to your message headers, you are using Thunderbird, so that's where you define your desired sender

Re: Postfix for three domains on one host

HI Raplh, Does this cover the case where each domain has its own header showing origin from each distinct domain? When I tried your suggestion they all come out from $myorigin. What am I missing? Inbound works fine to any number of virtual domains for me. It's outbound that has me perplexed.

Re: SSL communication between MTAs

These info are really helpful. thanks. On 2019/8/15 星期四 下午 11:29, Viktor Dukhovni wrote: On Thu, Aug 15, 2019 at 02:52:12PM +0800, Eliza wrote: My MTA (postfix) has both 25 (non-SSL) and 465 (SSL) ports enabled. Don't confuse port 25 used for (MTA-to-MTA) SMTP (inter-domain email relay),

Re: Postfix for three domains on one host

* Andrew Bernard: > is there any way to configure Postfix to act for three separate > domains without the necessity of separate IP's? Yes, a single Postfix instance with one IP address can easily handle multiple domains. http://www.postfix.org/VIRTUAL_README.html should get you started. -Ralph

Postfix for three domains on one host

I want to use my single VPS for three distinct domains. Simple for webservers. I would also want to be able to send and receive email on the three domains using Postfix. I understand there is postfix-multi. Everything I have read so far uses separate IP addresses for this scenario. Most VPS

Re: SSL communication between MTAs

On Thu, Aug 15, 2019 at 02:52:12PM +0800, Eliza wrote: > My MTA (postfix) has both 25 (non-SSL) and 465 (SSL) ports enabled. Don't confuse port 25 used for (MTA-to-MTA) SMTP (inter-domain email relay), with ports 587 and 465 used in the MUA-to-MTA *SUBMIT* protocol, which is very similar to

Re: SSL communication between MTAs

MTA-STS is not the only technique, DANE (rfc7672) can be used, too (and in fact it is by many big german providers at least). See this slides for an introduction: https://www.netnod.se/sites/default/files/ 2016-12/Anders_Berggren_can_haz_secure_mail.pdf Or this wikipedia page:

Re: SSL communication between MTAs

Hi, on 2019/8/15 15:44, a wrote: Maximum that you can do - enable STARTTLS and configure MTA-STS (rfc8461). Is there a guide for that? thanks.

Re: SSL communication between MTAs

You can't enforce remote peer to use SSL unless that peer is under your control. Maximum that you can do - enable STARTTLS and configure MTA-STS (rfc8461). чт, 15 авг. 2019 г., 9:53 Eliza : > Hello, > > My MTA (postfix) has both 25 (non-SSL) and 465 (SSL) ports enabled. > > How to enforce the

SSL communication between MTAs

Hello, My MTA (postfix) has both 25 (non-SSL) and 465 (SSL) ports enabled. How to enforce the peer MTA send messages only to 465 port for better secure communication? Can I just shutdown port 25? Thanks.