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Author Topic: A flood of old notification e-mails  (Read 107 times)
stuving
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« on: November 19, 2020, 12:12:38 am »

I just received a dozen notification e-mails, originally sent 15-16 November. They had been held up (according to the headers) inside wellho.net. Looking back, there are some other days going back at least two weeks with none received - so are there more lurking in the innards of that node?
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grahame
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« Reply #1 on: November 19, 2020, 05:22:32 am »

I just received a dozen notification e-mails, originally sent 15-16 November. They had been held up (according to the headers) inside wellho.net. Looking back, there are some other days going back at least two weeks with none received - so are there more lurking in the innards of that node?

Looking at the innards of our node (quite an interesting exercise) I see 27 emails pending - all have which have been tried and await trying again.  25 are from the Coffee Shop domain, and 2 from another site we host.   The 25 that are awaiting are - without exception - "sign up" emails where people have given what appear to be false email addresses in signing up - the sort of activity that necessitates sites to send you emails that check you're real when you join something; we get a very large number of false requests.   So - immediate answer - there is nothing lurking in our innards as I write this, unless you are attempting to sign up for another account from an email domain such as adult-work.info, discardmail.com, happyfreshdrink.com, maxsize.online, rambler.ru or spambog.ru - which I really hope you are not  Grin

That is only half the story.   Emails from our server (any server sending emails) go in lots of different directions, depending on the destination domain, and those can individually get stuck / blocked.   And sometimes the receiver will blacklist or refuse emails for a time from a sender.  Your registered email address on the forum is not at one of the common domains - not a hotmail or gmail, aol or outlook account - rather it's a domain with very few email accounts on it (like my own @wellho.net - a similar example).  Without crawling back, uncompressing log files (I would have to learn how to analyse their content) I can't tell if this happened.

I can assure you there is nothing for you in the queue as I write (or wasn't 10 minutes ago as I started writing) - your initial question.   If you send me (email, please, graham - at - wellho.net ) an example of the full headers of an email that got delayed I can look further, and if you suspect that emails to you are again blocked because nothing is coming through, please let me know and I can take a look while the blockage is still present.   We did have a couple of issues setting up email on the new server in September, but no problems reported prior to yours in the last six weeks - so I suspect it's not a general issue on our system, rather confirmed by my look around.   It could be that your domain/email service provider is sensitive to email that's not 101% checked, or that they have had spam problems from another system "near" to our machine in the cloud and have included us in their "dirty" zone.

It could also be that the emails forwarded promptly from us and got blocked up nearer to you ... in the equivalent of your "local sorting office". Don't you love email systems!
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grahame
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« Reply #2 on: November 19, 2020, 12:08:12 pm »

A follow up ... having examined headers of a sample email including headers.

Your (our member's) email service was blocking us - perhaps due to a flood of notifications in excess of a norm which that service sets, which caused us to be blacklisted for a while - I have sent you the specific log.  You may wish to whitelist 88.202.183.177 (also known as www.vcrp.org.uk) - that applies to any other members who have trouble receiving emails too.

I have just written a script (testing it as I post) which will send me an email (!) if our mail queue starts to grow with anything except false signups.  Not sure how I can let members know - can't email them - if they are blocking us ...
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You can find out more about how this forum works [here] - that will link you to a copy of the forum agreement that you can read before you join, and tell you very much more about how we operate. We are an independent forum, provided and run by customers of Great Western Railway, for customers of Great Western Railway and we welcome railway professionals as members too, in either a personal or official capacity. Views expressed in posts are not necessarily the views of the operators of the forum.

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