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Thunderbird - received emails with hours of delay for different mail accounts/server - yet with correct created timestamp

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  • Last reply by Matt

jbony01
jbony01
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I have been using Thunderbird for about 3 years now, never noticed any problem until recently (2 weeks ago). I currently have five email accounts setup in Thunderbird (@gmail.com, @yahoo.ca, and 3 accounts from my internet provider @bell.net). Two weeks ago I noticed that some of my emails for one (the most heavily used) of my @bell.net accounts started arriving with about 8 hours delay. Example: I have setup my bank account to send me an email alert every time I made a transaction, I made a transaction on April 27, 2021 at 2:54PM, I only received the notification the same day but at 10:xxPM, however the timestamp of the delayed message did show 2:54PM, made two other transactions on May 6, 2021 at 3:33PM, 3:35PM, but received the emails on May 10, 2021 at 10AM; so it took 4 days for me to receive the mails. I called my bank and they told me that it is not due to them. I checked with my bell.net provider and they told me that there is no problem with them either.

Then, just last Friday, I started noticing the same problem for some of my emails to @yahoo.ca email account as well. Example, yesterday, someone sent me an email at 2:31PM, but I only received it at 10:03PM, again with the received timestamp showed the correct 2:31PM. But the problem is not happening to every email to that account, only some.

I have checked my email filters for every account, on both Thunderbird and the website of the provider, but saw no change or issue. I find it strange that two different mail servers are exhibiting the exact same problem, the only other common factor between the two is Thunderbird. Is this a known problem? What could be causing this problem? Thanks,

I have been using Thunderbird for about 3 years now, never noticed any problem until recently (2 weeks ago). I currently have five email accounts setup in Thunderbird (@gmail.com, @yahoo.ca, and 3 accounts from my internet provider @bell.net). Two weeks ago I noticed that some of my emails for one (the most heavily used) of my @bell.net accounts started arriving with about 8 hours delay. Example: I have setup my bank account to send me an email alert every time I made a transaction, I made a transaction on April 27, 2021 at 2:54PM, I only received the notification the same day but at 10:xxPM, however the timestamp of the delayed message did show 2:54PM, made two other transactions on May 6, 2021 at 3:33PM, 3:35PM, but received the emails on May 10, 2021 at 10AM; so it took 4 days for me to receive the mails. I called my bank and they told me that it is not due to them. I checked with my bell.net provider and they told me that there is no problem with them either. Then, just last Friday, I started noticing the same problem for some of my emails to @yahoo.ca email account as well. Example, yesterday, someone sent me an email at 2:31PM, but I only received it at 10:03PM, again with the received timestamp showed the correct 2:31PM. But the problem is not happening to every email to that account, only some. I have checked my email filters for every account, on both Thunderbird and the website of the provider, but saw no change or issue. I find it strange that two different mail servers are exhibiting the exact same problem, the only other common factor between the two is Thunderbird. Is this a known problem? What could be causing this problem? Thanks,

All Replies (1)

Matt
Matt
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Thunderbird displays the date header, which is set by the sender, not the receiving server. If you examine the message source (ctrl+U) you will see all the received headers for the email to be able to determine at what point the delay occurred. Probably between your bank (not a gmail or outlook or yahoo) so prone to funny and even plain silly anti spam actions on receiving servers like refusing to accept the first 2 or three attempts to deliver or simply refusing entirely because they are not in your address book. Most major delays come down to plain silly anti spam measures, but exactly what is difficult to get the parties to admit to.