Running your own email is increasingly an artisanal choice, not a practical one
41–50 of 519 posts
Re: Running your own email is increasingly an artisanal choice, not a practical one
#42As usual, it is a financial one. Do you have ~30,000 EUR / year for skilled admin? Plus ~20,000 EUR / year for hardware and other running costs? If you do, you can have your emails safely and reliably exchanged from your basement. If you don't, you can rent whatever on the 'net that suits your budget.
Re: Running your own email is increasingly an artisanal choice, not a practical one
#43Yeah I stopped running my own. I kept getting blocked by Microsoft in particular (mainly consumer recipients at live.com and outlook.com, strange enough not corporate O365 users!). I'm 100% sure I did not send any spam, the only emails going to those addresses were legit from a family member. DMARC and SPF were all set perfectly, relays blocked, I was not on any spamlist and I never have been either. Literally every…
Re: Running your own email is increasingly an artisanal choice, not a practical one
#44I configured postfix with:
recipient_delimiter = .
which gives me unlimited dynamic virtual addresses (username.@mydomain), so I know where spam/leaks come from if I get unsolicited mail directed to `username.`, and it makes it trivial to block.I know that you can do the same thing with google addresses using + as a delimited, but the + sign is often not allowed in dumb email checks. Also spammers probably know about + and strip it automatically anyway...
Re: Running your own email is increasingly an artisanal choice, not a practical one
#45Re: Running your own email is increasingly an artisanal choice, not a practical one
#46You should make sure your server's IP address isn't blacklisted. If it is, you're going to have major delivery issues with some email server providers (ESP). Some blacklists you can check are listed here [0]-[3].
I think my main problem now is the UCE Protect [5] blacklist. I think some of the major ESPs use their harshest blacklist from UCE Protect, which is their Level 3 blacklist [6]. This blacklist will include your IP if your ISP meets a spam threshold for any of their other IP addresses. This makes running a mail server on cheap hosting providers like Digital Ocean or Linode very difficult.
My conclusion is I should switch to a more expensive ISP that isn't in danger of getting on the UCEPROTECTL3 list or find an email forwarding service for a next hop destination for outgoing mail.
You can read more about UCE Protect here [7]-[10].
[0]: mailtester: https://www.mail-tester.com/
[1]: mxtoolbox blacklists: https://mxtoolbox.com/blacklists.aspx
[2]: proofpoint blacklist: https://ipcheck.proofpoint.com
[4]: outlook blacklist: https://sendersupport.olc.protection.outlook.com/snds/index....
[5]: UCEPROTECT: http://www.uceprotect.net/en/index.php
[6]: UCEPROTECTL3 blacklist: http://www.uceprotect.net/en/index.php?m=3&s=5
[7]: UCEPROTECT Blacklist Scam https://community.spiceworks.com/topic/2170592-uceprotect-bl...
[8]: UCEPROTECT: When RBLs Go Bad https://blog.sucuri.net/2021/02/uceprotect-when-rbls-go-bad....
[9]: ASK HN thread https://news.ycombinator.com/item?id=26064722
[10]: SQLite3 IP blacklisted: https://sqlite.org/forum/forumpost/bb61881d7a?hist
[11]: Previous IP reputation issue https://news.ycombinator.com/item?id=25437841
Re: Running your own email is increasingly an artisanal choice, not a practical one
#47Re: Running your own email is increasingly an artisanal choice, not a practical one
#48As usual, it is a financial one. Do you have ~30,000 EUR / year for skilled admin? Plus ~20,000 EUR / year for hardware and other running costs? If you do, you can have your emails safely and reliably exchanged from your basement. If you don't, you can rent whatever on the 'net that suits your budget.
Re: Running your own email is increasingly an artisanal choice, not a practical one
#49I still run my own email system (postfix/dovecot for imap), mostly for one reason: the virtual username function of postfix: I configured postfix with: recipient_delimiter = . which gives me unlimited dynamic virtual addresses (username. @mydomain), so I know where spam/leaks come from if I get unsolicited mail directed to `username. `, and it makes it trivial to block. I know that you can do the same thing with goog…
Re: Running your own email is increasingly an artisanal choice, not a practical one
#50I would agree that setting up a robust personal email system is difficult and may be exceedingly so for an organization of any significant size but I am not sure I would attribute that to the quality of services from large providers. Our organization (a university) outsourced its email to MS (outlook) and it is simply awful. No IMAP or POP, no forwarding (this is of course the policy of the university, not MS' fault…
> " simply awful. No IMAP or POP " Microsoft seem to disagree with you there: https://support.microsoft.com/en-us/office/pop-imap-and-smtp...
They've already delayed it a few times but they keep pushing for this.