Hi guys,
I have the following setup.
1. I use the mail.synchro.net outgoing mail relay for both incoming and outgoin

g mail i.e. mail.snchro.net set setup on my side as an mx relay. This all works--I've setup logs so that I see all of the responses for sending and receiving mail--this is verboxe, but it helped me determine if my setup was correct.
I set forward email to netmail, option m in default settings to yes, and entered my gmail email address (in other words, the system is supposed to foward all email to me at my gmail address.
According to logs, mail gets out and all bits are set orrectly i.e. it says that mail should be forwarded. Problem is that when I use gmail as my forwarding address, it delivers to the bitbucket in the sky and I do not receive the mail. If I set mail forwarding to anything but gmail, I receive the mail.
Has anyone else experienced this behavior with GMAIL? I can in fact send mail to myself from the bbs and the nreceive it. I've checked spam--the message simply doesn't arrive. For now, I will set forwarding to my other address, butjust wanted to ask if anyone'se gotten it to work/if that was a known issue.

Thanks.

Noel

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Re: forwarding personal email to gmail
By: Ner to All on Sun Nov 19 2023 01:06 am

Hi guys,
I have the following setup.
1. I use the mail.synchro.net outgoing mail relay for both incoming and outgoin

g mail i.e. mail.snchro.net set setup on my side as an mx relay. This all works--I've setup logs so that I see all of the responses for sending and receiving mail--this is verboxe, but it helped me determine if my setup was correct.
I set forward email to netmail, option m in default settings to yes, and entered my gmail email address (in other words, the system is supposed to foward all email to me at my gmail address.
According to logs, mail gets out and all bits are set orrectly i.e. it says that mail should be forwarded. Problem is that when I use gmail as my forwarding address, it delivers to the bitbucket in the sky and I do not receive the mail. If I set mail forwarding to anything but gmail, I receive the mail.
Has anyone else experienced this behavior with GMAIL? I can in fact send mail to myself from the bbs and the nreceive it. I've checked spam--the message simply doesn't arrive. For now, I will set forwarding to my other address, butjust wanted to ask if anyone'se gotten it to work/if that was a known issue.

The log entries from the Synchronet sendmail thread will give you the clue (e.g. error messages) you're looking for. The sendmail thread will attempt delivery a configurable number of times and then bounce the mail back to the sender, so if gmail is refusing the mail, it'll eventually bounce back, but check your log for the delivery attempts.

Most likely, gmail wants your domain to be protected with SPF: https://en.wikipedia.org/wiki/Sender_Policy_Framework

Someone created a howto page on the Synchronet wiki for SPF and other concerns around email security:
https://wiki.synchro.net/howto:emailsec
--
digital man (rob)

This Is Spinal Tap quote #32:
Derek Smalls: [A jog?] We don't have time for that.
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Re: forwarding personal email to gmail
By: Digital Man to Ner on Sun Nov 19 2023 01:44 pm

Re: forwarding personal email to gmail
By: Ner to All on Sun Nov 19 2023 01:06 am

Hi guys,
I have the following setup.
1. I use the mail.synchro.net outgoing mail relay for both incoming and outgoin

g mail i.e. mail.snchro.net set setup on my side as an mx relay. This al > > works--I've setup logs so that I see all of the responses for sending and > > receiving mail--this is verboxe, but it helped me determine if my setup w > > correct.
I set forward email to netmail, option m in default settings to yes, and entered my gmail email address (in other words, the system is supposed to > > foward all email to me at my gmail address.
According to logs, mail gets out and all bits are set orrectly i.e. it sa > > that mail should be forwarded. Problem is that when I use gmail as my
forwarding address, it delivers to the bitbucket in the sky and I do not receive the mail. If I set mail forwarding to anything but gmail, I rece > > the mail.
Has anyone else experienced this behavior with GMAIL? I can in fact send > > mail to myself from the bbs and the nreceive it. I've checked spam--the
message simply doesn't arrive. For now, I will set forwarding to my othe > > address, butjust wanted to ask if anyone'se gotten it to work/if that was > > known issue.

The log entries from the Synchronet sendmail thread will give you the clue (e.g. error messages) you're looking for. The sendmail thread will attempt delivery a configurable number of times and then bounce the mail back to the > sender, so if gmail is refusing the mail, it'll eventually bounce back, but
check your log for the delivery attempts.

So I was able to track this down to the SPF and DKIM entries. I can do one of two things--set up SPF and DKIM on my domain itself based on a tool, or I can use my mail MTA (fastmail)'s records. I've used their configured records, and things seem to be moving now.
I'm not sure if this is the correct behavior, but when the forward happens, it shows in my mail client as coming from my fastmail email address via my synchronet username. If I send mail via the mail.synchro.net relay, I may get more complete/correct addressing i.e. correct from: address.

https://en.wikipedia.org/wiki/Sender_Policy_Framework

Someone created a howto page on the Synchronet wiki for SPF and other concer > around email security:
https://wiki.synchro.net/howto:emailsec

I can, in point of fact, actually receive mail at port 25. It might be a cool experience to set up valid spf and DMARC so that I can use the actual server tosend via the Synchronet SMTP. For now though, I think I can get it to work viasending through mail.synchro.net or via sending with my MTA. Am I missing
something, or am I on the right track mail-wise.

NER

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Re: forwarding personal email to gmail
By: Ner to Digital Man on Mon Nov 20 2023 10:33 pm

Strike that. I've covered all bases now. I can use synchronet forward with MXrelay if I need to, I can use port 25 inbound mail for MX or I can send throughfastmail, and all things check out similarly. If you use fastmail as your MTA,delete all addresses from your domain, thus allowing mail to be delivered to
the correct domain and not internally forwarded. I did set SPF and DMARC, leaving the fastmail records in place, and this seems to not hurt my ability tosend mail/receive it.

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