I debuged it. function Boolean FindUserInMailbox(string name,var string mailboxcode,var LongInt mailboxnr) does not like some names and stucks in the eternal loop:

2017-06-07 11:47:03 GATE FindUserInMailbox: name="GOOGLE® CORPORATION"< mailboxcode= mailboxnr=-1
2017-06-07 11:47:03 GATE FindUserInMailbox: name="GOOGLE® CORPORATION"< mailboxcode= mailboxnr=-1
2017-06-07 11:47:03 GATE FindUserInMailbox: name="GOOGLE® CORPORATION"< mailboxcode= mailboxnr=-1

I guess it does not like registered trademark symbol in this case

gateway crashed again with the above error already fixed. Some interesting lines

2017-06-07 17:52:02 SYSTEM El. pašto siuntimas iš Virginija <<sending email
2017-06-07 17:52:02 Updating wrong E-Mail Queue record with Sent Flag
2017-06-07 17:52:03 Updating wrong E-Mail Queue record with Sent Flag
2017-06-07 17:52:03 Updating wrong E-Mail Queue record with Sent Flag
...
2017-06-08 11:16:18 VK PDF Error: 4133
2017-06-08 11:16:18 VK PDF Error: 4191
2017-06-08 11:16:18 VK PDF error embedding font: fonts/ADVC128B.TTF: Unsupported
ttf format.
2017-06-08 11:16:18 VK Times-Roman will be used instead.
2017-06-08 11:16:18 VK PDF Error: 4191
2017-06-08 11:16:18 VK PDF error embedding font: fonts/ADVC128B.TTF: Unsupported
ttf format.
2017-06-08 11:16:18 VK Times-Roman will be used instead.
2017-06-08 11:18:24 SYSTEM El. pašto siuntimas iš Virginija
2017-06-08 11:18:25 GATE looking for: 2,4,10,14,16,20 0|0|2017-06-08>18 006 800
88; 929 880 800 080.003082?|11:18:24.0|0|12418
2017-06-08 11:18:25 GATE in index: 0:EMailQueVc:SENDING
2017-06-08 11:18:25 GATE D4IndexDelete found no record
2017-06-08 11:18:25 GATE dump of call stack
2017-06-08 11:18:25 GATE D4IndexDelete found no record, now dumping index:
2017-06-08 11:18:25 GATE new clean node at: 1253862400 with 5 atoms and 11798 lo
gical children
2017-06-08 11:18:25 GATE key: 2,4,10,14,16,20 1|0|2004-11-04=48 00; 800 48< 85:
280 800 080.000004|12:5:34.0|0|4, daughter: 1255259136
2017-06-08 11:18:25 GATE new clean node at: 1255259136 with 7 atoms and 2401 l
ogical children

....
2017-06-08 11:18:27 GATE
2017-06-08 11:18:27 GATE end of node
2017-06-08 11:18:27 GATE

crash happened here

which one, the second issue with "nodes" and "atoms" or the first one?

The first one ("google corporation")could easily make SERP non working, because everytime it receives such an email, it crashes the server each time the gateway connects to the pop3 server. We experienced that.