Re: [EXTERNAL] Re: MX records and relayhost: Am I going this correctly ?

2022-10-26 Thread Wietse Venema
White, Daniel E. (GSFC-770.0)[AEGIS]: > Many thanks for the sanity check, Mr. Postfix > > I am using the explicit domain name rather than $mydomain mainly on client > machines because they are not guaranteed to have the same domain as the mail > servers. > > Is there any way to shorten/remove

Re: [EXTERNAL] Re: MX records and relayhost: Am I going this correctly ?

2022-10-26 Thread White, Daniel E. (GSFC-770.0)[AEGIS]
Many thanks for the sanity check, Mr. Postfix I am using the explicit domain name rather than $mydomain mainly on client machines because they are not guaranteed to have the same domain as the mail servers. Is there any way to shorten/remove the delay I saw in the MX-failover ? Again, many

Re: MX records and relayhost: Am I going this correctly ?

2022-10-26 Thread Wietse Venema
White, Daniel E. (GSFC-770.0)[AEGIS]: > MX Records: > > mydomain.tld. 33 IN MX 10 relay-1.mydomain.tld. > mydomain.tld. 33 IN MX 20 relay-2.mydomain.tld. > > with relay-1 and relay-2 having appropriate A and PTR records. > > Then in

MX records and relayhost: Am I going this correctly ?

2022-10-26 Thread White, Daniel E. (GSFC-770.0)[AEGIS]
MX Records: mydomain.tld. 33 IN MX 10 relay-1.mydomain.tld. mydomain.tld. 33 IN MX 20 relay-2.mydomain.tld. with relay-1 and relay-2 having appropriate A and PTR records. Then in /etc/postfix/main.cf, I have relayhost = mydomain.tld I

Re: Outlook TLS errors after Microsoft Windows Update

2022-10-26 Thread Noel Jones
On 10/26/2022 9:34 AM, Wietse Venema wrote: Gerald Galster: just wanted to let you know that Outlook users might run into problems submitting mails after Microsoft's latest Windows update. Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: connect from Oct 15 14:49:42 mx1

Re: Outlook TLS errors after Microsoft Windows Update

2022-10-26 Thread Gerald Galster
>>> just wanted to let you know that Outlook users might run into problems >>> submitting mails after Microsoft's latest Windows update. >>> >>> Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: connect from >>> Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: SSL_accept error from >>> :

Re: [External] Re: Outlook TLS errors after Microsoft Windows Update

2022-10-26 Thread Kevin A. McGrail
On 10/26/2022 10:56 AM, Viktor Dukhovni wrote: RAPTOR REMARK: Alert! Please be careful! This email is from an EXTERNAL sender. Be aware of impersonation and credential theft. On Wed, Oct 26, 2022 at 03:56:29PM +0200, Gerald Galster wrote: This issue is resolved by update KB5018496 for

Re: Outlook TLS errors after Microsoft Windows Update

2022-10-26 Thread Viktor Dukhovni
On Wed, Oct 26, 2022 at 03:56:29PM +0200, Gerald Galster wrote: > This issue is resolved by update KB5018496 for Windows 11 22H2 x64: > > https://support.microsoft.com/en-us/topic/october-25-2022-kb5018496-os-build-22621-755-preview-64040bea-1e02-4b6d-bad1-b036200c2cb3 > > October 25,

Re: Outlook TLS errors after Microsoft Windows Update

2022-10-26 Thread Wietse Venema
Gerald Galster: > > just wanted to let you know that Outlook users might run into problems > > submitting mails after Microsoft's latest Windows update. > > > > Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: connect from > > Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: SSL_accept

Re: Outlook TLS errors after Microsoft Windows Update

2022-10-26 Thread Gerald Galster
> just wanted to let you know that Outlook users might run into problems > submitting mails after Microsoft's latest Windows update. > > Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: connect from > Oct 15 14:49:42 mx1 postfix/submission/smtpd[25067]: SSL_accept error from > : lost

Re: started getting 550 #5.7.1 SPF unauthorized mail

2022-10-26 Thread Wietse Venema
Dominic Raferd: > On 25/08/2022 04:41, li...@sbt.net.au wrote: > > I have a simple 'mail list' where an alias 'ct...@sbt.net.au' sends email > > to several recipients, that's been in use since long time. > > > > today noticed one of these addresses started bouncing with '5.7.1 SPF > > unauthorized

Re: Cannot resolve support@ alias

2022-10-26 Thread Matus UHLAR - fantomas
On 26.10.22 12:07, Dominik George wrote: OK, that's getting stranger. At least it works now – but I don't know why. Postfix started accepting the mail and correctly resolving the alias some time in the night between 24th and 25th of October. I had a script sitting here sending test mails every

Re: started getting 550 #5.7.1 SPF unauthorized mail

2022-10-26 Thread Dominic Raferd
On 25/08/2022 04:41, li...@sbt.net.au wrote: I have a simple 'mail list' where an alias 'ct...@sbt.net.au' sends email to several recipients, that's been in use since long time. today noticed one of these addresses started bouncing with '5.7.1 SPF unauthorized mail' since just today: what am I

Re: Cannot resolve support@ alias

2022-10-26 Thread Dominik George
Hi, eh… OK, that's getting stranger. At least it works now – but I don't know why. Postfix started accepting the mail and correctly resolving the alias some time in the night between 24th and 25th of October. I had a script sitting here sending test mails every hour (because all of this was

Re: Cannot resolve support@ alias

2022-10-26 Thread Bastian Blank
Hi Dominiki On Tue, Oct 25, 2022 at 10:58:51PM +0200, Dominik George wrote: > I am facing a strange issue here, where I cannot resolve a virtual > alias with the local part support@. Please follow the instructions in https://www.postfix.org/DEBUG_README.html#mail. Bastian -- Earth -- mother