Lost imap access from mail client

(Domains below edited as the board thinks I’m trying to post links.)

My domain hosted here has a number of email accounts that I can access fine at webmail-klacto-net and could access just fine for years in mail clients configured following https://help.dreamhost.com/hc/en-us/articles/214918038-Email-client-configuration-overview , i.e. the domain is imap-dreamhost-com. Since about yesterday, no imap response. As webmail still works I assume the problem is at my end, but how can I troubleshoot it?

$ ping imap-dreamhost-com
PING imap-dreamhost-com (64.90.62.162): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4
Request timeout for icmp_seq 5
Request timeout for icmp_seq 6
Request timeout for icmp_seq 7
Request timeout for icmp_seq 8
^C
--- imap-dreamhost-com ping statistics ---
10 packets transmitted, 0 packets received, 100.0% packet loss

$ telnet imap-dreamhost-com
Trying 64.90.62.162...
^C

Maybe this is the issue: Gmail errors since Security Certificate updated

Thanks, but doesn’t the gmail issue have to do with smtp, not imap? I can’t fathom how google would be involved in my problem.

You’re correct. I don’t use imap, so just guessing since I saw other posts about recent email issues.

I do have several domain email aliases here, but I forward each to my free Gmail account. There, it’s simple to set up send/receive with those names.

Looks like an upstream network issue. You might try a tracert to check into where the failure is occurring but chances are that there will be little you can do about it on your end.

Sidenote: I’ve noticed entire servers not being reachable for 20-30 minutes at a stretch in recent days and have assumed it’s due to congestion caused by stay-at-homers trashing the net more than usual.

Thanks. The output is below and I notice concurrently that (for the first time in two days) my mail client got mail (and the server right now replies to ping as below). Hopefully this persists…

$ traceroute imap.dreamhost.com
traceroute to imap.dreamhost.com (64.90.62.162), 64 hops max, 52 byte packets
 1  192.168.0.1 (192.168.0.1)  11.513 ms  9.898 ms  10.504 ms
 2  * * *
 3  10.1.2.9 (10.1.2.9)  25.074 ms  15.758 ms  14.085 ms
 4  38.104.51.129 (38.104.51.129)  26.918 ms  38.916 ms  44.381 ms
 5  be3484.rcr21.jax01.atlas.cogentco.com (154.24.2.225)  35.010 ms  29.173 ms  37.658 ms
 6  be2785.ccr42.atl01.atlas.cogentco.com (154.54.28.109)  32.916 ms  39.550 ms
    be2784.ccr41.atl01.atlas.cogentco.com (154.54.28.105)  30.746 ms
 7  be2690.ccr42.iah01.atlas.cogentco.com (154.54.28.130)  46.217 ms
    be2687.ccr41.iah01.atlas.cogentco.com (154.54.28.70)  49.684 ms  53.082 ms
 8  be2443.ccr32.dfw01.atlas.cogentco.com (154.54.44.230)  50.866 ms
    be2441.ccr31.dfw01.atlas.cogentco.com (154.54.41.66)  59.848 ms
    be2443.ccr32.dfw01.atlas.cogentco.com (154.54.44.230)  47.405 ms
 9  be2432.ccr21.mci01.atlas.cogentco.com (154.54.3.134)  57.816 ms  59.765 ms
    be2433.ccr22.mci01.atlas.cogentco.com (154.54.3.214)  70.261 ms
10  be3035.ccr21.den01.atlas.cogentco.com (154.54.5.89)  89.410 ms
    be3036.ccr22.den01.atlas.cogentco.com (154.54.31.89)  79.227 ms
    be3035.ccr21.den01.atlas.cogentco.com (154.54.5.89)  117.616 ms
11  be3038.ccr32.slc01.atlas.cogentco.com (154.54.42.97)  87.976 ms
    be3037.ccr21.slc01.atlas.cogentco.com (154.54.41.145)  90.493 ms
    be3038.ccr32.slc01.atlas.cogentco.com (154.54.42.97)  89.986 ms
12  154.54.89.101 (154.54.89.101)  120.446 ms
    be3284.ccr22.sea02.atlas.cogentco.com (154.54.44.73)  100.294 ms
    be2029.ccr22.sea02.atlas.cogentco.com (154.54.86.110)  112.256 ms
13  be2670.ccr21.pdx01.atlas.cogentco.com (154.54.42.150)  135.471 ms
    be2671.ccr21.pdx01.atlas.cogentco.com (154.54.31.78)  120.932 ms  110.059 ms
14  be2216.ccr51.pdx02.atlas.cogentco.com (154.54.31.158)  109.900 ms  110.011 ms  109.984 ms
15  38.142.108.114 (38.142.108.114)  110.017 ms  109.227 ms  108.614 ms
16  pdx1-cr-1.sd.dreamhost.com (66.33.200.2)  110.143 ms
    pdx1-cr-2.sd.dreamhost.com (66.33.200.3)  109.463 ms
    pdx1-cr-1.sd.dreamhost.com (66.33.200.2)  112.227 ms
17  ip-66-33-200-25.dreamhost.com (66.33.200.25)  119.290 ms  123.496 ms  314.000 ms
18  pop.dreamhost.com (64.90.62.162)  113.749 ms  108.460 ms  121.677 ms
$

$ ping imap.dreamhost.com
PING imap.dreamhost.com (64.90.62.162): 56 data bytes
64 bytes from 64.90.62.162: icmp_seq=0 ttl=47 time=105.582 ms
64 bytes from 64.90.62.162: icmp_seq=1 ttl=47 time=118.580 ms
64 bytes from 64.90.62.162: icmp_seq=2 ttl=47 time=113.424 ms
64 bytes from 64.90.62.162: icmp_seq=3 ttl=47 time=108.181 ms
^C
--- imap.dreamhost.com ping statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 105.582/111.442/118.580/4.996 ms

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.